@article{KernDikta2008,
  author    = {Kern, Alexander and Dikta, Gerhard},
  title     = {Bewerten von Sch{\"a}den durch Blitzeinwirkungen},
  series = {Elektropraktiker. 62 (2008), H. 4},
  journal   = {Elektropraktiker. 62 (2008), H. 4},
  isbn      = {0013-5569},
  pages     = {338 -- 342},
  year      = {2008},
  language  = {de}
}
@article{Kern2009,
  author    = {Kern, Alexander},
  title     = {{\"U}berarbeitung der Blitzschutznorm IEC 62305},
  series = {Elektropraktiker. 63 (2009), H. 4},
  journal   = {Elektropraktiker. 63 (2009), H. 4},
  isbn      = {0013-5569},
  pages     = {391 -- 394},
  year      = {2009},
  language  = {de}
}
@article{SchwarzerdaSilvaHoffschmidtetal.2009,
  author    = {Schwarzer, Klemens and da Silva, Vieira E. and Hoffschmidt, Bernhard and Schwarzer, T.},
  title     = {A new solar desalination system with heat recovery for decentralised drinking water production},
  series = {Desalination. 248 (2009), H. 1-3},
  journal   = {Desalination. 248 (2009), H. 1-3},
  publisher = {Elsevier},
  address   = {Amsterdam},
  isbn      = {0011-9164},
  pages     = {204 -- 211},
  year      = {2009},
  language  = {en}
}
@article{KernSchelthoffMathieu2010,
  author    = {Kern, Alexander and Schelthoff, Christof and Mathieu, Moritz},
  title     = {Probability of lightning strikes to air-terminations of structures using the electro-geometrical model theory and the statistics of lightning current parameters},
  pages     = {750-1 -- 750-8},
  year      = {2010},
  language  = {en}
}
@article{BouquegneauKernRousseau2010,
  author    = {Bouquegneau, Christian and Kern, Alexander and Rousseau, Alain},
  title     = {Lightning safety guidelines},
  pages     = {1 -- 6},
  year      = {2010},
  language  = {en}
}
@article{KernFrentzelBehrens2010,
  author    = {Kern, Alexander and Frentzel, Ralf and Behrens, J{\"o}rg},
  title     = {Simulation of the transient voltages in the auxiliary power network of a large power plant in case of a direct lightning strike to the high-voltage overhead transmission line},
  pages     = {749-1 -- 749-7},
  year      = {2010},
  language  = {en}
}
@article{KernKloetersPferdemenges2010,
  author    = {Kern, Alexander and Kl{\"o}ters, Georg and Pferdemenges, J{\"o}rg},
  title     = {Optimised protection against lightning for the signalling and safety systems of level crossings on non-electrified railway lines},
  series = {RTR : European Rail Technology Review},
  volume    = {50},
  journal   = {RTR : European Rail Technology Review},
  number    = {2},
  isbn      = {0079-9548},
  year      = {2010},
  language  = {en}
}
@article{KernSchelthoffMathieu2010,
  author    = {Kern, Alexander and Schelthoff, Christof and Mathieu, Moritz},
  title     = {Die dynamische Blitzkugel : Wahrscheinlichkeitsberechnung f{\"u}r Blitzeinschl{\"a}ge in Geb{\"a}ude},
  series = {De Fachzeitschrift f{\"u}r das Elektrohandwerk. 13-14 (2010)},
  journal   = {De Fachzeitschrift f{\"u}r das Elektrohandwerk. 13-14 (2010)},
  pages     = {24 -- 29},
  year      = {2010},
  language  = {de}
}
@article{KernSchelthoffMathieu2011,
  author    = {Kern, Alexander and Schelthoff, Christof and Mathieu, Moritz},
  title     = {Detaillierte Berechnung der Einfangwirksamkeiten von Fangeinrichtungen mit einem dynamischen elektro-geometrischen Modell - Detailed calculation of the interception efficiencies for airtermination systems using a dynamic electro-geometrical model},
  pages     = {1 -- 5},
  year      = {2011},
  language  = {de}
}
@article{KernSchelthoffMathieu2011,
  author    = {Kern, Alexander and Schelthoff, Christof and Mathieu, Moritz},
  title     = {Calculation of interception efficiencies for airterminations using a dynamic electro-geometrical model},
  publisher = {IEEE},
  address   = {New York},
  pages     = {1 -- 6},
  year      = {2011},
  language  = {en}
}
@article{LandersKern2011,
  author    = {Landers, Ernst Ulrich and Kern, Alexander},
  title     = {Future evolution of risk management for structures : Advancement for the future IEC 62305-2 Ed3},
  publisher = {IEEE},
  address   = {New York},
  pages     = {1 -- 6},
  year      = {2011},
  language  = {en}
}
@article{SchwarzerGoettscheJellinghaus2006,
  author    = {Schwarzer, Klemens and G{\"o}ttsche, Joachim and Jellinghaus, Sabine},
  title     = {FORSCHUNG UND TECHNIK - Messtechnik - Was will der Nutzer? - Eine langfristige Studie hat Nutzer zu einer Farblichtsteuerung befragt. Teil 1: Untersuchungsdesign, Leuchtenentwicklung und Messwerterfassung},
  series = {Licht : Planung, Design, Technik, Handel ; Organ der Deutschen Lichttechnischen Gesellschaft e.V. (LiTG) ; Organ des Normenausschusses Lichttechnik (FNL) im DIN Deutsches Institut f{\"u}r Normung e.V. ; Organ des Verbandes Wohnraumleuchten-, Lampenschirm und . 58 (2006), H. 7-8},
  journal   = {Licht : Planung, Design, Technik, Handel ; Organ der Deutschen Lichttechnischen Gesellschaft e.V. (LiTG) ; Organ des Normenausschusses Lichttechnik (FNL) im DIN Deutsches Institut f{\"u}r Normung e.V. ; Organ des Verbandes Wohnraumleuchten-, Lampenschirm und . 58 (2006), H. 7-8},
  isbn      = {0024-2861},
  pages     = {754 -- 759},
  year      = {2006},
  language  = {de}
}
@article{SchwarzerGoettscheJellinghaus2006,
  author    = {Schwarzer, Klemens and G{\"o}ttsche, Joachim and Jellinghaus, Sabine},
  title     = {FORSCHUNG UND TECHNIK - Messtechnik - Was will der Nutzer? Eine langfristige Studie hat Nutzer zu einer Farblichtsteuerung befragt (Teil 2)},
  series = {Licht : Planung, Design, Technik, Handel ; Organ der Deutschen Lichttechnischen Gesellschaft e.V. (LiTG) ; Organ des Normenausschusses Lichttechnik (FNL) im DIN Deutsches Institut f{\"u}r Normung e.V. ; Organ des Verbandes Wohnraumleuchten-, Lampenschirm und . 58 (2006), H. 9},
  journal   = {Licht : Planung, Design, Technik, Handel ; Organ der Deutschen Lichttechnischen Gesellschaft e.V. (LiTG) ; Organ des Normenausschusses Lichttechnik (FNL) im DIN Deutsches Institut f{\"u}r Normung e.V. ; Organ des Verbandes Wohnraumleuchten-, Lampenschirm und . 58 (2006), H. 9},
  isbn      = {0024-2861},
  pages     = {862 -- 867},
  year      = {2006},
  language  = {de}
}
@article{SchwarzerMuellerWagner2000,
  author    = {Schwarzer, Klemens and M{\"u}ller, C. and Wagner, A.},
  title     = {Entwicklung und Bau einer solaren Geb{\"a}udeheizung im Altiplano/Argentinien / C. M{\"u}ller ; K. Schwarzer ; A. Wagner ...},
  series = {Sonne - die Energie des 21. Jahrhunderts : Kurzfassungen; 5. - 7. Juli 2000 Freiburg; inklusive 11. Jahrestagung Forschungsverbund Sonnenenergie / 12. Internationales Sonnenforum. [Hrsg.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V., DGS. Red.: Joachim Berner; Forschungsverbund Sonnenenergie]},
  journal   = {Sonne - die Energie des 21. Jahrhunderts : Kurzfassungen; 5. - 7. Juli 2000 Freiburg; inklusive 11. Jahrestagung Forschungsverbund Sonnenenergie / 12. Internationales Sonnenforum. [Hrsg.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V., DGS. Red.: Joachim Berner; Forschungsverbund Sonnenenergie]},
  publisher = {Solar Promotion},
  address   = {M{\"u}nchen},
  isbn      = {3-934349-07-2},
  pages     = {269 -- 272},
  year      = {2000},
  language  = {de}
}
@article{SchwarzerHafnerWemhoeneretal.2000,
  author    = {Schwarzer, Klemens and Hafner, B. and Wemh{\"o}ner, C. and Wenzel, T.},
  title     = {Das Programm CARNOT zur Simulation solarthermischer Anlagen unter MATLAB-Simulink / B. Hafner ; C. Wemh{\"o}ner ; T. Wenzel ; K. Schwarzer},
  series = {Sonne - die Energie des 21. Jahrhunderts : Kurzfassungen; 5. - 7. Juli 2000 Freiburg; inklusive 11. Jahrestagung Forschungsverbund Sonnenenergie / 12. Internationales Sonnenforum. [Hrsg.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V., DGS. Red.: Joachim Berner; Forschungsverbund Sonnenenergie]},
  journal   = {Sonne - die Energie des 21. Jahrhunderts : Kurzfassungen; 5. - 7. Juli 2000 Freiburg; inklusive 11. Jahrestagung Forschungsverbund Sonnenenergie / 12. Internationales Sonnenforum. [Hrsg.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V., DGS. Red.: Joachim Berner; Forschungsverbund Sonnenenergie]},
  publisher = {Solar Promotion},
  address   = {M{\"u}nchen},
  isbn      = {3-934349-07-2},
  pages     = {181 -- 186},
  year      = {2000},
  language  = {de}
}
@article{SchwarzerWemhoener2001,
  author    = {Schwarzer, Klemens and Wemh{\"o}ner, C.},
  title     = {Erfahrungen mit dem Betrieb von kleinen thermischen Solaranlagen},
  series = {Solarthermie : Auslegung, Anwendung, technische Regeln ; Tagung Gelsenkirchen, 7. M{\"a}rz 2001 / VDI-Gesellschaft Energietechnik. - (VDI-Berichte ; 1584)},
  journal   = {Solarthermie : Auslegung, Anwendung, technische Regeln ; Tagung Gelsenkirchen, 7. M{\"a}rz 2001 / VDI-Gesellschaft Energietechnik. - (VDI-Berichte ; 1584)},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-091584-6},
  pages     = {167 -- 184},
  year      = {2001},
  language  = {de}
}
@article{SchwarzerStracke1994,
  author    = {Schwarzer, Klemens and Stracke, Thomas},
  title     = {Teststand f{\"u}r solarthermische Kollektoren},
  series = {Energie f{\"u}r die Zukunft : 28. Juni bis 1. Juli 1994 ; [Tagungsbericht 1] / 9. Internationales Sonnenforum '94. [Hrsg. Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS. Red. A. Hohmann ; H. H. Hohmann]. - (Internationales Sonnenforum ; 9,1)},
  journal   = {Energie f{\"u}r die Zukunft : 28. Juni bis 1. Juli 1994 ; [Tagungsbericht 1] / 9. Internationales Sonnenforum '94. [Hrsg. Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS. Red. A. Hohmann ; H. H. Hohmann]. - (Internationales Sonnenforum ; 9,1)},
  publisher = {DGS-Sonnenenergie},
  address   = {M{\"u}nchen},
  pages     = {319 -- 326},
  year      = {1994},
  language  = {de}
}
@article{BruessermannEschhausMuensteretal.1981,
  author    = {Br{\"u}ssermann, Klaus and Eschhaus, M. and M{\"u}nster, M. and Schommer, N.},
  title     = {Einige Bemerkungen zur Bestimmung der Strahlenexposition am Beispiel des Standortes Biblis},
  series = {Wissenschaft und Umwelt : Organ d. Interdisziplin{\"a}ren Sonderbereichs Umweltschutz, ISU der Rheinisch-Westf{\"a}lischen Technischen Hochschule Aachen ; Organ d. Wissenschaftlichen Gesellschaft f{\"u}r Umweltschutz e.V., Aachen (1981)},
  journal   = {Wissenschaft und Umwelt : Organ d. Interdisziplin{\"a}ren Sonderbereichs Umweltschutz, ISU der Rheinisch-Westf{\"a}lischen Technischen Hochschule Aachen ; Organ d. Wissenschaftlichen Gesellschaft f{\"u}r Umweltschutz e.V., Aachen (1981)},
  isbn      = {0170-6977},
  pages     = {1 -- 16},
  year      = {1981},
  language  = {de}
}
@article{BruessermannAshtonLeichtetal.1994,
  author    = {Br{\"u}ssermann, Klaus and Ashton, P. and Leicht, R. and Martens, B.-R.},
  title     = {Concept of the Konrad repository documentation system for radioactive wastes (DORA) / Ashton, P.; Leicht, R.; Martens, B.-R.; Giller, H. Br{\"u}ssermann, K.},
  series = {Kerntechnik 94 : Jahrestagung, 17.-19. Mai 1994, Stuttgart: Tagungsbericht = Nuclear technology, annual meeting 94 / Veranst.: Kerntechnische Gesellschaft; Deutsches Atomforum},
  journal   = {Kerntechnik 94 : Jahrestagung, 17.-19. Mai 1994, Stuttgart: Tagungsbericht = Nuclear technology, annual meeting 94 / Veranst.: Kerntechnische Gesellschaft; Deutsches Atomforum},
  publisher = {INFORUM Verl.- u. Verwaltungs-Ges.},
  address   = {Bonn},
  pages     = {294 -- 297},
  year      = {1994},
  language  = {en}
}
@article{Bruessermann1984,
  author    = {Br{\"u}ssermann, Klaus},
  title     = {Ausbreitungsrechnungen aus ingenieurtechnischer Sicht},
  series = {Meeting of Umweltbundesamt Working Group for Diffusion Calculation, Berlin (Germany, F.R.), 10 May 1984},
  journal   = {Meeting of Umweltbundesamt Working Group for Diffusion Calculation, Berlin (Germany, F.R.), 10 May 1984},
  pages     = {1 -- 11},
  year      = {1984},
  language  = {de}
}
@article{BruessermannBonnenbergSoehngen1985,
  author    = {Br{\"u}ssermann, Klaus and Bonnenberg, H. and S{\"o}hngen, K.},
  title     = {Ingenieurberatung zur Erf{\"u}llung umweltrechtlicher Vorschriften / Bonnenberg, H.; Br{\"u}ssermann, K.; S{\"o}hngen, K.},
  series = {Erfahrungen mit Techniken der st{\"a}dtischen Energieversorgung : Tagung Stuttgart, 25. u. 26. Sept. 1985 / VDI-Gesellschaft Energietechnik},
  journal   = {Erfahrungen mit Techniken der st{\"a}dtischen Energieversorgung : Tagung Stuttgart, 25. u. 26. Sept. 1985 / VDI-Gesellschaft Energietechnik},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-090573-5},
  pages     = {271 -- 285},
  year      = {1985},
  language  = {de}
}
@article{Bruessermann1989,
  author    = {Br{\"u}ssermann, Klaus},
  title     = {H3 and C14 air monitoring according to KTA 1503.1},
  series = {2. Karlsruhe international conference on analytical chemistry in nuclear technology, Karlsruhe (Germany), 5-9 Jun 1989},
  journal   = {2. Karlsruhe international conference on analytical chemistry in nuclear technology, Karlsruhe (Germany), 5-9 Jun 1989},
  pages     = {223},
  year      = {1989},
  language  = {en}
}
@article{Bruessermann1983,
  author    = {Br{\"u}ssermann, Klaus},
  title     = {Konzeption eines Handbuches f{\"u}r Maßnahmen bei St{\"o}rf{\"a}llen},
  series = {Joint experts' meeting of the Working Group 'Dispersion Calculation' of the Federal Environmental Office and the Working Group 'Atmospheric Dispersion' of the Radioecology Committee of the Radiation Protection Commission, Berlin (Germany, F.R), 7 Sep 1982},
  journal   = {Joint experts' meeting of the Working Group 'Dispersion Calculation' of the Federal Environmental Office and the Working Group 'Atmospheric Dispersion' of the Radioecology Committee of the Radiation Protection Commission, Berlin (Germany, F.R), 7 Sep 1982},
  pages     = {1 -- 20},
  year      = {1983},
  language  = {de}
}
@article{SchwarzerMuellerKleineHering2004,
  author    = {Schwarzer, Klemens and M{\"u}ller, C. and Kleine-Hering, H.},
  title     = {Simple solar systems for heating, hot water and cooking in high altitude regions with high solar radiation / C. M{\"u}ller ; K. Schwarzer ; H. Kleine-Hering},
  series = {Proceedings / organised by: ISES Europe ... [Ed.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS, Munich ; PSE GmbH - Forschung Entwicklung Marketing, Freiburg]. - Vol 1},
  journal   = {Proceedings / organised by: ISES Europe ... [Ed.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS, Munich ; PSE GmbH - Forschung Entwicklung Marketing, Freiburg]. - Vol 1},
  publisher = {PSE},
  address   = {Freiburg [Breisgau]},
  isbn      = {3-9809656-1-9},
  pages     = {1-653-1-658},
  year      = {2004},
  language  = {en}
}
@article{SchwarzerMuellerVieiradaSilva2004,
  author    = {Schwarzer, Klemens and M{\"u}ller, C. and Vieira da Silva, E.},
  title     = {Solare Meerwasser-Entsalzungsanlagen mit mehrstufiger W{\"a}rmer{\"u}ckgewinnung / C. M{\"u}ller ; K. Schwarzer ; E. Vieira da Silva ...},
  series = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai, 2004, Kloster Banz / [Veranst.: OTTI Energie-Kolleg]},
  journal   = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai, 2004, Kloster Banz / [Veranst.: OTTI Energie-Kolleg]},
  publisher = {Ostbayerisches Technologie-Transfer-Institut},
  address   = {Regensburg},
  isbn      = {3-934681-33-6},
  pages     = {154 -- 159},
  year      = {2004},
  language  = {en}
}
@article{SchwarzerMuellerMertes2004,
  author    = {Schwarzer, Klemens and M{\"u}ller, C. and Mertes, C.},
  title     = {Solar thermal desalination systems with multi-layer heat recovery / C. M{\"u}ller ; K. Schwarzer ; C. Mertes ...},
  series = {Proceedings / organised by: ISES Europe ... [Ed.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS, Munich ; PSE GmbH - Forschung Entwicklung Marketing, Freiburg]. - Vol 1},
  journal   = {Proceedings / organised by: ISES Europe ... [Ed.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS, Munich ; PSE GmbH - Forschung Entwicklung Marketing, Freiburg]. - Vol 1},
  publisher = {PSE},
  address   = {Freiburg [Breisgau]},
  isbn      = {3-9809656-1-9},
  pages     = {1-647-1-652},
  year      = {2004},
  language  = {en}
}
@article{SchwarzerSilva2003,
  author    = {Schwarzer, Klemens and Silva, Maria Eug{\^e}nia Vieira da},
  title     = {Solar cooking system with or without heat storage for families and institutions},
  series = {Solar energy. 75 (2003), H. 1},
  journal   = {Solar energy. 75 (2003), H. 1},
  isbn      = {0038-092x},
  pages     = {34 -- 41},
  year      = {2003},
  language  = {en}
}
@article{HelsperDreilingHalleretal.1986,
  author    = {Helsper, Christoph and Dreiling, V. and Haller, P. and Kaminski, U.},
  title     = {Intercomparison of Eleven Condensation Nucleus Counters / Dreiling, V. ; Haller, P. ; Helsper, C.; Kaminski, U. ; Plomp, A. ; Raes, F. ; Roth, C. ; Schier, J. ; Sch{\"u}rmann, G.},
  series = {Journal of Aerosol Science. 17 (1986), H. 3},
  journal   = {Journal of Aerosol Science. 17 (1986), H. 3},
  isbn      = {0021-8502},
  pages     = {565 -- 570},
  year      = {1986},
  language  = {en}
}
@article{HelsperMoelter1987,
  author    = {Helsper, Christoph and M{\"o}lter, W.},
  title     = {Determination and Neutralization of the Charge Produced by the Dispersion of Powders},
  series = {Journal of Aerosol Science. 18 (1987), H. 6},
  journal   = {Journal of Aerosol Science. 18 (1987), H. 6},
  isbn      = {0021-8502},
  pages     = {877 -- 880},
  year      = {1987},
  language  = {de}
}
@article{HelsperMoelterHaller1990,
  author    = {Helsper, Christoph and M{\"o}lter, W. and Haller, P.},
  title     = {Representative Dilution of Aerosols by a Factor of 10,000},
  series = {Journal of Aerosol Science. 21 (1990), H. Suppl. 1},
  journal   = {Journal of Aerosol Science. 21 (1990), H. Suppl. 1},
  isbn      = {0021-8502},
  pages     = {637 -- 640},
  year      = {1990},
  language  = {en}
}
@article{Helsper1986,
  author    = {Helsper, Christoph},
  title     = {Kondensationskernz{\"a}hler und ihre Anwendung in der Reinraumtechnik},
  series = {Swiss Chem. 8 (1986)},
  journal   = {Swiss Chem. 8 (1986)},
  isbn      = {0251-1703},
  pages     = {63 -- 66},
  year      = {1986},
  language  = {de}
}
@article{HelsperWiedensohlerWeiseetal.1986,
  author    = {Helsper, Christoph and Wiedensohler, A. and Weise, W. and L{\"u}tkemeier, E.},
  title     = {Determination of the Bipolar Charge Equilibrium in Pure Gases / Wiedensohler, A. ; Weise, W. ; Helsper, C. ; L{\"u}tkemeier, E.},
  series = {Aerosols : formation and reactivity ; proceedings of the second International Aerosol Conference, 22-26 Sept. 1986, Berlin (West) / Gesellschaft f{\"u}r Aerosolforschung (GAeF) ; American Association for Aerosol Research (AAAR)},
  journal   = {Aerosols : formation and reactivity ; proceedings of the second International Aerosol Conference, 22-26 Sept. 1986, Berlin (West) / Gesellschaft f{\"u}r Aerosolforschung (GAeF) ; American Association for Aerosol Research (AAAR)},
  publisher = {Pergamon Press},
  address   = {Oxford [u.a.]},
  pages     = {383 -- 386},
  year      = {1986},
  language  = {en}
}
@article{HelsperLuetkemeierWiedensohler1986,
  author    = {Helsper, Christoph and L{\"u}tkemeier, E. and Wiedensohler, A.},
  title     = {Charge Distribution by Unipolar Charging of Small Aerosol Particles / L{\"u}tkemeier, E. ; Helsper, C. ; Wiedensohler, A.},
  series = {Aerosols : formation and reactivity ; proceedings of the second International Aerosol Conference, 22-26 Sept. 1986, Berlin (West) / Gesellschaft f{\"u}r Aerosolforschung (GAeF) ; American Association for Aerosol Research (AAAR)},
  journal   = {Aerosols : formation and reactivity ; proceedings of the second International Aerosol Conference, 22-26 Sept. 1986, Berlin (West) / Gesellschaft f{\"u}r Aerosolforschung (GAeF) ; American Association for Aerosol Research (AAAR)},
  publisher = {Pergamon Press},
  address   = {Oxford [u.a.]},
  pages     = {474 -- 478},
  year      = {1986},
  language  = {en}
}
@article{Helsper1986,
  author    = {Helsper, Christoph},
  title     = {Measurement Techniques For Ultrafine Particles},
  series = {Ultrafine aerosols. Properties and behaviour. Proceedings of the 1. International Workshop on Ultrafine Aerosols of the Sonderforschungsbereich 209 'Stoff- und Energietransport in Aerosolen' -'Mass and energy transfer in aerosols'-, held at the Univ. of Duisburg on Sept. 29, 1986},
  journal   = {Ultrafine aerosols. Properties and behaviour. Proceedings of the 1. International Workshop on Ultrafine Aerosols of the Sonderforschungsbereich 209 'Stoff- und Energietransport in Aerosolen' -'Mass and energy transfer in aerosols'-, held at the Univ. of Duisburg on Sept. 29, 1986},
  address   = {Duisburg},
  year      = {1986},
  language  = {en}
}
@article{HelsperBartz1987,
  author    = {Helsper, Christoph and Bartz, H.},
  title     = {Theoretische Bestimmung des Abscheidegrades eines Filters bei verschiedenen Betriebszust{\"a}nden / Bartz, H. ; Helsper, C.},
  series = {Staub, Reinhaltung der Luft. 47 (1987)},
  journal   = {Staub, Reinhaltung der Luft. 47 (1987)},
  isbn      = {0039-0771},
  pages     = {112 -- 114},
  year      = {1987},
  language  = {de}
}
@article{HelsperMoelterMoelter1986,
  author    = {Helsper, Christoph and M{\"o}lter, W. and M{\"o}lter, L.},
  title     = {Korngr{\"o}ßenanalyseverfahren f{\"u}r trockene Pulver und St{\"a}ube von 0,5-25 µm},
  series = {Chemie-Technik. 16 (1986)},
  journal   = {Chemie-Technik. 16 (1986)},
  isbn      = {0340-9961},
  pages     = {140 -- 144},
  year      = {1986},
  language  = {de}
}
@article{HelsperMoelterWillemer1987,
  author    = {Helsper, Christoph and M{\"o}lter, W. and Willemer, W.},
  title     = {Fast and Automated Testing of Filter Media / M{\"o}lter, W. ; Helsper, C. ; Willemer, W.},
  series = {FILTECH Conference 1987 : Utrecht, Holland; September 23 - 25 1987 / org. by the Filtration Society , Vol. 1.},
  journal   = {FILTECH Conference 1987 : Utrecht, Holland; September 23 - 25 1987 / org. by the Filtration Society , Vol. 1.},
  publisher = {Filtration Society},
  address   = {Loughborough},
  pages     = {106 -- 112},
  year      = {1987},
  language  = {en}
}
@article{Helsper1979,
  author    = {Helsper, Christoph},
  title     = {Evaluation of Particle Size Distributions by Means of Particle Counters / Fißan, H. J. ; Helsper, C.},
  series = {Proceedings of the First Workshop of Particulate Control : 16. - 17. March 1978, Kernforschung-sanlage J{\"u}lich GmbH / prepared by U.S. Environmental Protection Agency, Off. of Research and Development, Washington, D.C, 1979,},
  journal   = {Proceedings of the First Workshop of Particulate Control : 16. - 17. March 1978, Kernforschung-sanlage J{\"u}lich GmbH / prepared by U.S. Environmental Protection Agency, Off. of Research and Development, Washington, D.C, 1979,},
  publisher = {Zentralbibliothek d. Kernforschungsanlage J{\"u}lich [in Komm.]},
  address   = {J{\"u}lich},
  pages     = {495 S.: Ill., graph. Darst.},
  year      = {1979},
  language  = {en}
}
@article{HelsperFissan1979,
  author    = {Helsper, Christoph and Fißan, H. J.},
  title     = {Numerical Simulation Studies and Data Reduction for Size Classifying Measurement Techniques / Fißan, H. J.; Helsper, C.},
  series = {Aerosols in science, medicine and technology : conference / Gesellschaft f{\"u}r Aerosolforschung 7. 1979.},
  journal   = {Aerosols in science, medicine and technology : conference / Gesellschaft f{\"u}r Aerosolforschung 7. 1979.},
  pages     = {199 -- 205},
  year      = {1979},
  language  = {en}
}
@article{HelsperFissan1980,
  author    = {Helsper, Christoph and Fißan, H. J.},
  title     = {Numerical Simulation Studies and Data Reduction for Size Classifying Measurement Techniques / Fißan, H. J.; Helsper, C.},
  series = {Advances in Particle Sampling and Measurement: Proceedings, Daytona Beach, EPA 600/9 80 004, 1980},
  journal   = {Advances in Particle Sampling and Measurement: Proceedings, Daytona Beach, EPA 600/9 80 004, 1980},
  publisher = {National Technical Information Service},
  address   = {Springfield, Va.},
  pages     = {VII, 409 S.},
  year      = {1980},
  language  = {en}
}
@article{HelsperFissanMugglietal.1980,
  author    = {Helsper, Christoph and Fißan, H. J. and Muggli, J. and Scheidweiler, A.},
  title     = {Particle Number Distributions of Aerosols from Test Fires},
  series = {Journal of Aerosol Science. 11 (1980), H. 5-6},
  journal   = {Journal of Aerosol Science. 11 (1980), H. 5-6},
  isbn      = {0021-8502},
  pages     = {439 -- 446},
  year      = {1980},
  language  = {en}
}
@article{HelsperFissan1981,
  author    = {Helsper, Christoph and Fißan, H. J.},
  title     = {Response Characteristic of a Polytec HC-15 Optical Particle Counter},
  series = {Aerosols in science, medicine and technology : Physical and chemical properties of aerosols : Association for Aerosol Research: annual conference. 1980 : Gesellschaft f{\"u}r Aerosolforschung: annual conference. 1980 : Aerosols in science, medicine and technology : Physical and chemical properties of aerosols : Associa-tion for Aerosol Research: annual conference. 1980 : Gesellschaft f{\"u}r Aerosolforschung: annual conference. 1980 : Schmallenberg, 22.10.80 - 24.10.80},
  journal   = {Aerosols in science, medicine and technology : Physical and chemical properties of aerosols : Association for Aerosol Research: annual conference. 1980 : Gesellschaft f{\"u}r Aerosolforschung: annual conference. 1980 : Aerosols in science, medicine and technology : Physical and chemical properties of aerosols : Associa-tion for Aerosol Research: annual conference. 1980 : Gesellschaft f{\"u}r Aerosolforschung: annual conference. 1980 : Schmallenberg, 22.10.80 - 24.10.80},
  publisher = {Pergamon Pr.},
  address   = {Oxford},
  pages     = {287 -- 292},
  year      = {1981},
  language  = {en}
}
@article{HelsperFissanKapadietal.1982,
  author    = {Helsper, Christoph and Fißan, H. J. and Kapadi, A. and Liu, B. Y. H.},
  title     = {Data Inversion by Simplex Minimization for the Electrical Aerosol Analyzer},
  series = {Aerosol Science and Technology. 1 (1982), H. 1982},
  journal   = {Aerosol Science and Technology. 1 (1982), H. 1982},
  isbn      = {0278-6826},
  pages     = {136 -- 146},
  year      = {1982},
  language  = {en}
}
@article{HelsperFissan1982,
  author    = {Helsper, Christoph and Fißan, H. J.},
  title     = {Techniken zur Kalibrierung von Staubmeßger{\"a}ten / Fißan, H. J.; Helsper, C.},
  series = {Schwebstoffe und St{\"a}ube : analyt. u. techn. Aspekte ; Kolloquium N{\"u}rnberg 1981},
  journal   = {Schwebstoffe und St{\"a}ube : analyt. u. techn. Aspekte ; Kolloquium N{\"u}rnberg 1981},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-090429-1},
  pages     = {59 -- 64},
  year      = {1982},
  language  = {de}
}
@article{HelsperFissan1982,
  author    = {Helsper, Christoph and Fißan, H. J.},
  title     = {Zur Reaktion von Rauchdetektoren auf Brandkenngr{\"o}ßen / Fißan, H. J.; Helsper, C.},
  series = {Tagungsbericht zum Internationalen Vortragsseminar {\"u}ber Probleme der automatischen Brandent-deckung / Institut f{\"u}r Elektrische Nachrichtentechnik. Technische Hochschule Aachen ; Fachgebiet Nachrichtentechnik. Universit{\"a}t Duisburg, Gesamthochschule . 8. Internationales Vortragsseminar "AUBE 82"},
  journal   = {Tagungsbericht zum Internationalen Vortragsseminar {\"u}ber Probleme der automatischen Brandent-deckung / Institut f{\"u}r Elektrische Nachrichtentechnik. Technische Hochschule Aachen ; Fachgebiet Nachrichtentechnik. Universit{\"a}t Duisburg, Gesamthochschule . 8. Internationales Vortragsseminar "AUBE 82"},
  address   = {Duisburg},
  pages     = {20 -- 37},
  year      = {1982},
  language  = {de}
}
@article{BruessermannMuenster1983,
  author    = {Br{\"u}ssermann, Klaus and M{\"u}nster, M.},
  title     = {Berechnung der Populationsdosis nach St{\"o}rf{\"a}llen an Standorten f{\"u}r Einrichtungen der nuklearen Entsorgung},
  series = {Berechnung der Ausbreitung von Radionukliden {\"u}ber den Luft- und Nahrungspfad und der potentiellen Strahlenexpositionen bei St{\"o}rf{\"a}llen in oberirdischen Anlagen der Entsorgung.},
  journal   = {Berechnung der Ausbreitung von Radionukliden {\"u}ber den Luft- und Nahrungspfad und der potentiellen Strahlenexpositionen bei St{\"o}rf{\"a}llen in oberirdischen Anlagen der Entsorgung.},
  publisher = {Hahn-Meitner-Institut f{\"u}r Kernforschung},
  address   = {Berlin},
  pages     = {74 -- 88},
  year      = {1983},
  language  = {de}
}
@article{Helsper1988,
  author    = {Helsper, Christoph},
  title     = {Kondensationskernz{\"a}hler in der Reinraummeßtechnik - Meßbereichsgrenzen nach unten verschoben},
  series = {Reinraumtechnik. 5 (1988)},
  journal   = {Reinraumtechnik. 5 (1988)},
  pages     = {36 -- 39},
  year      = {1988},
  language  = {de}
}
@article{HelsperMoelter1989,
  author    = {Helsper, Christoph and M{\"o}lter, L.},
  title     = {Erzeugung von Pr{\"u}faerosolen f{\"u}r die Kalibrierung von optischen Partikelmeßverfahren nach VDI 3491},
  series = {Technisches Messen. 56 (1989)},
  journal   = {Technisches Messen. 56 (1989)},
  isbn      = {0171-8096},
  pages     = {229 -- 234},
  year      = {1989},
  language  = {en}
}
@article{HelsperMoelterKaminski1989,
  author    = {Helsper, Christoph and M{\"o}lter, W. and Kaminski, S.},
  title     = {Fast and Automated Testing of Different Air Filter Media / M{\"o}lter, W. ; Helsper, C. ; Kaminski, S.},
  series = {1. Europ{\"a}isches Symposium Partikelabscheidung aus Gasen : [PARTEC, N{\"u}rnberg, West Germany, 19. - 21. April 1989 ; preprints] = 1. European Symposium Separation of Particles from Gases / [Organisation und Durchf{\"u}hrung: N{\"u}rnbergMesse]. Hrsg. von: Friedrich L{\"o}ffler},
  journal   = {1. Europ{\"a}isches Symposium Partikelabscheidung aus Gasen : [PARTEC, N{\"u}rnberg, West Germany, 19. - 21. April 1989 ; preprints] = 1. European Symposium Separation of Particles from Gases / [Organisation und Durchf{\"u}hrung: N{\"u}rnbergMesse]. Hrsg. von: Friedrich L{\"o}ffler},
  publisher = {N{\"u}rnbergMesse},
  address   = {N{\"u}rnberg},
  pages     = {441 -- 457},
  year      = {1989},
  language  = {en}
}
@article{HelsperMoelterKaminski1989,
  author    = {Helsper, Christoph and M{\"o}lter, W. and Kaminski, S.},
  title     = {Fast and Automated Testing of Different Air Filter Media / M{\"o}lter, W. ; Helsper, C. ; Kaminski, S.},
  series = {Proceedings of the Filtech Conference, Karlsruhe 1989, Vol. 1},
  journal   = {Proceedings of the Filtech Conference, Karlsruhe 1989, Vol. 1},
  publisher = {Filtration Society},
  address   = {Oadby},
  pages     = {125 -- 136},
  year      = {1989},
  language  = {en}
}