@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}
}
@book{SchwarzerMueller2001,
  author    = {Schwarzer, Klemens and M{\"u}ller, Christoph},
  title     = {Entwicklung und Optimierung eines neuartigen Meer- und Brackwasser-Entsalzungssystems : Schlussbericht},
  publisher = {Fachhochschule Aachen},
  address   = {Aachen},
  pages     = {90 S.},
  year      = {2001},
  language  = {de}
}
@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{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}
}
@book{SchwarzerMueller2003,
  author    = {Schwarzer, Klemens and M{\"u}ller, C.},
  title     = {Entwicklung und Optimierung einer Geb{\"a}udeheizung f{\"u}r den Einsatz in Hochgebirgsregionen mit hoher solarer Einstrahlung : Abschlussbericht},
  publisher = {Solar-Institut Juelich, Fachhochschule Aachen},
  address   = {J{\"u}lich},
  pages     = {118 S.},
  year      = {2003},
  language  = {de}
}
@article{MeissenKrischer1978,
  author    = {Meißen, Ralf and Krischer, C.},
  title     = {Elektronische Fernsehlesehilfe f{\"u}r hochgradig sehbehinderte},
  series = {Biomedical Engineering / Biomedizinische Technik},
  volume    = {23},
  journal   = {Biomedical Engineering / Biomedizinische Technik},
  number    = {s1},
  publisher = {De Gruyter},
  address   = {Berlin},
  doi       = {10.1515/bmte.1978.23.s1.220},
  pages     = {220 -- 221},
  year      = {1978},
  language  = {de}
}
@book{Neubauer1991,
  author    = {Neubauer, Boris},
  title     = {Transkristalline Schichten auf Hochspannungskabeln aus Polyethylen : Struktur und Permeationseigenschaften},
  address   = {Darmstadt},
  pages     = {126 S. : Ill., graph. Darst.},
  year      = {1991},
  language  = {de}
}
@article{NeubauerJungnickel1993,
  author    = {Neubauer, Boris and Jungnickel, B. J.},
  title     = {Diffusion als Maß f{\"u}r die elektrische Isolier-Dauerfestigkeit von PE. L{\"a}ngs- und Querdiffusion durch transkristalline Oberfl{\"a}chenschichten},
  series = {Kunststoffe. 83 (1993), H. 3},
  journal   = {Kunststoffe. 83 (1993), H. 3},
  isbn      = {0023-5563},
  pages     = {231 -- 233},
  year      = {1993},
  language  = {de}
}
@book{Hodapp1989,
  author    = {Hodapp, Josef},
  title     = {Die direkte Selbst-Regelung einer Asynchronmaschine mit einem Signalprozessor},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-147508-4},
  pages     = {II, 148 S. : graph. Darst.},
  year      = {1989},
  language  = {de}
}
@book{MeissenHotfilter1972,
  author    = {Meißen, Ralf and Hotfilter, Josef},
  title     = {Modell einer Einrichtung zur Positionierung von kugelf{\"o}rmigen Brennelementen nach einer Bohrung mit ber{\"u}hrungsloser fluidischer Abtastung / Josef Hotfilter ; Ralf Meißen},
  publisher = {Kernforschungsanlage},
  address   = {J{\"u}lich},
  pages     = {17 Bl.: graph. Darst.},
  year      = {1972},
  language  = {de}
}
@book{Meissen1975,
  author    = {Meißen, Ralf},
  title     = {Ein Meßsystem zur photometrischen Untersuchung reversibler und irreversibler photochemischer Reaktionen im Zeitbereich von 50 ns bis 5 ms},
  publisher = {Zentralbibl. d. KFA},
  address   = {J{\"u}lich},
  pages     = {III, 99 S.},
  year      = {1975},
  language  = {de}
}
@article{Helsper1995,
  author    = {Helsper, Christoph},
  title     = {Probleme der Staubprobenahme bei der Filterpr{\"u}fung},
  series = {Filtrieren und Separieren (1995)},
  journal   = {Filtrieren und Separieren (1995)},
  isbn      = {0933-5927},
  pages     = {5 -- 13},
  year      = {1995},
  language  = {de}
}
@article{Helsper2002,
  author    = {Helsper, Christoph},
  title     = {Partikelmesstechnik},
  series = {Reinraumtechnik , Hrsg.: Gail, Lothar},
  journal   = {Reinraumtechnik , Hrsg.: Gail, Lothar},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-66885-3},
  pages     = {57 -- 82},
  year      = {2002},
  language  = {de}
}
@article{Helsper2003,
  author    = {Helsper, Christoph},
  title     = {Messverfahren zur Charakterisierung der Abscheidung luftgetragener Partikel in Filtern},
  series = {Schutzmaßnahmen vor mikrobiellen Belastungen des Innenraumes / VII. L{\"u}becker Fachtagung f{\"u}r Umwelthygiene. [Hrsg.:] Reinhard Keller ...},
  journal   = {Schutzmaßnahmen vor mikrobiellen Belastungen des Innenraumes / VII. L{\"u}becker Fachtagung f{\"u}r Umwelthygiene. [Hrsg.:] Reinhard Keller ...},
  publisher = {Inst. f. Medizinische Mikrobiologie u. Hygiene d. Med. Univ.},
  address   = {L{\"u}beck},
  pages     = {35 -- 61},
  year      = {2003},
  language  = {de}
}
@article{Helsper1993,
  author    = {Helsper, Christoph},
  title     = {Integrit{\"a}tspr{\"u}fung an LF-Anlagen mit Hilfe von Pr{\"u}faerosolen},
  series = {Pharma-Technologie-Journal. 14 (1993), H. 2},
  journal   = {Pharma-Technologie-Journal. 14 (1993), H. 2},
  isbn      = {0931-9700},
  pages     = {36 -- 42},
  year      = {1993},
  language  = {de}
}
@article{HelsperMoelterKaminski1992,
  author    = {Helsper, Christoph and M{\"o}lter, W. and Kaminski, S.},
  title     = {Fast, Automated Testing of Different Air Filter Media / M{\"o}lter, W. ; Helsper, C. ; Kaminski, S.},
  series = {Filtration and Separation. 29 (1992), H. 1},
  journal   = {Filtration and Separation. 29 (1992), H. 1},
  isbn      = {0015-1882},
  pages     = {45 -- 50},
  year      = {1992},
  language  = {en}
}
@article{HelsperMoelterLoeffleretal.1993,
  author    = {Helsper, Christoph and M{\"o}lter, W. and L{\"o}ffler, F. and Wadenpohl, C.},
  title     = {Investigations on a New Aerosol Generator for the Production of Carbon Aggregate Particles / Helsper, C. ; M{\"o}lter, W. ; L{\"o}ffler, F. ; Wadenpohl, C. ; Kaufmann, S. ; Wenninger, G.},
  series = {Atmospheric Environment. Part A. General Topics. 27 A (1993), H. 8},
  journal   = {Atmospheric Environment. Part A. General Topics. 27 A (1993), H. 8},
  isbn      = {1352-2310},
  pages     = {1271 -- 1275},
  year      = {1993},
  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}
}