@article{Grundmann1991,
  author    = {Grundmann, Reinhard},
  title     = {Windger{\"a}usche auf gemeinsamen Nenner gebracht - Vorschlag f{\"u}r eine einheitliche Bezeichnung der Emissionskenngr{\"o}ßen von aerodynamischen Ger{\"a}uschquellen},
  series = {HLH - Zeitschrift f{\"u}r Heizung, L{\"u}ftung, Klimatechnik, Haustechnik. 42 (1991), H. 1},
  journal   = {HLH - Zeitschrift f{\"u}r Heizung, L{\"u}ftung, Klimatechnik, Haustechnik. 42 (1991), H. 1},
  isbn      = {0017-9906},
  pages     = {54 -- 55},
  year      = {1991},
  language  = {de}
}
@article{GrundmannKramer1991,
  author    = {Grundmann, Reinhard and Kramer, Carl},
  title     = {Einheitliche Darstellung von Str{\"o}mungsger{\"a}uschen. Beschreibung der Schalleistung und Darstellung einiger Str{\"o}mungsger{\"a}usche - 2. Teil.},
  series = {HLH - Zeitschrift f{\"u}r Heizung, L{\"u}ftung, Klimatechnik, Haustechnik. 42 (1991), H. 4},
  journal   = {HLH - Zeitschrift f{\"u}r Heizung, L{\"u}ftung, Klimatechnik, Haustechnik. 42 (1991), H. 4},
  isbn      = {0017-9906},
  pages     = {275 -- 281},
  year      = {1991},
  language  = {de}
}
@article{GrundmannKramer1991,
  author    = {Grundmann, Reinhard and Kramer, Carl},
  title     = {Einheitliche Darstellung von Str{\"o}mungsger{\"a}uschen. Beschreibung der Schalleistung und Darstellung einiger Str{\"o}mungsger{\"a}usche. 1. Teil.},
  series = {HLH - Zeitschrift f{\"u}r Heizung, L{\"u}ftung, Klimatechnik, Haustechnik. 42 (1991), H. 3},
  journal   = {HLH - Zeitschrift f{\"u}r Heizung, L{\"u}ftung, Klimatechnik, Haustechnik. 42 (1991), H. 3},
  isbn      = {0017-9906},
  pages     = {233 -- 238},
  year      = {1991},
  language  = {de}
}
@article{GruetersSavvidisLoeeretal.1991,
  author    = {Gr{\"u}ters, Hugo and Savvidis, E. and L{\"o}er, F. and Wiesener, C. H.},
  title     = {Analyse der Beanspruchung des proximalen Femur bei verschiedenen Arten der Belastung mit Hilfe der Finite-Element-Methode / Savvidis, E. ; L{\"o}er, F. ; Gr{\"u}ters, Hugo ; Wiesener, C. H.},
  series = {Zeitschrift f{\"u}r Orthop{\"a}die und ihre Grenzgebiete. 129 (1991), H. 3},
  journal   = {Zeitschrift f{\"u}r Orthop{\"a}die und ihre Grenzgebiete. 129 (1991), H. 3},
  isbn      = {1615-9586},
  pages     = {268 -- 277},
  year      = {1991},
  language  = {de}
}
@article{GoettscheReillyWittwer1991,
  author    = {G{\"o}ttsche, Joachim and Reilly, S. and Wittwer, Volker},
  title     = {Advanced window systems and building energy performance / S. Reilly ; J. G{\"o}ttsche ; V. Wittwer},
  series = {Solar World Congress, 1991 : proceedings of the biennial congress of the International Solar Energy Society, Denver, Colorado, USA, 19-23 August 1991 / ed. by M. E. Arden ...},
  journal   = {Solar World Congress, 1991 : proceedings of the biennial congress of the International Solar Energy Society, Denver, Colorado, USA, 19-23 August 1991 / ed. by M. E. Arden ...},
  publisher = {Pergamon Press},
  address   = {Oxford [u.a.]},
  isbn      = {0-08-041690-X},
  pages     = {3211 -- 3216},
  year      = {1991},
  language  = {en}
}
@article{HagemannLadeWarnieretal.1991,
  author    = {Hagemann, Hans-J{\"u}rgen and Lade, H. and Warnier, J. and Wiechert, D. U.},
  title     = {The performance of Depressed-Cladding Single-Mode Fibres with Different b/a Ratios. Hagemann, H.-J.; Lade, H.; Warnier, J.; Wiechert, D. U.},
  series = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 9 (1991), H. 6},
  journal   = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 9 (1991), H. 6},
  isbn      = {0733-8724},
  pages     = {689 -- 694},
  year      = {1991},
  language  = {en}
}
@article{Heger1991,
  author    = {Heger, Michael},
  title     = {Lehrveranstaltungskritik als angewandte Hochschuldidaktik},
  series = {Feedback versus Evaluation. Bd. 1 : Argumente f{\"u}r und gegen die Bewertung der universit{\"a}ren Lehre},
  journal   = {Feedback versus Evaluation. Bd. 1 : Argumente f{\"u}r und gegen die Bewertung der universit{\"a}ren Lehre},
  publisher = {{\"O}sterreichischer Studien-Verl.},
  address   = {Innsbruck},
  pages     = {43 -- 69},
  year      = {1991},
  language  = {de}
}
@book{Hegewald1991,
  author    = {Hegewald, Ulf},
  title     = {Plastiken 91 / Xylon, Museum + Werkst{\"a}tten},
  address   = {Schwetzingen},
  pages     = {34 S. : {\"u}berw. Ill.},
  year      = {1991},
  language  = {de}
}
@article{HeinrichsHaub1991,
  author    = {Heinrichs, Horst and Haub, A.},
  title     = {Grafische Oberfl{\"a}chen vereinfachen den FEM-Einsatz},
  series = {CAD-CAM Report. 10 (1991), H. 3},
  journal   = {CAD-CAM Report. 10 (1991), H. 3},
  pages     = {79 -- 85},
  year      = {1991},
  language  = {de}
}
@article{HelsperMoelter1991,
  author    = {Helsper, Christoph and M{\"o}lter, W.},
  title     = {Characteristics of a Nebulizer with Cyclone Preseparator / M{\"o}lter, W. ; Helsper, C.},
  series = {Aerosols, their generation, behaviour and applications. Annual Conference of the Aerosol Society / Aerosol Society (UK) ; 5.},
  journal   = {Aerosols, their generation, behaviour and applications. Annual Conference of the Aerosol Society / Aerosol Society (UK) ; 5.},
  address   = {Loughborough},
  pages     = {89 -- 94},
  year      = {1991},
  language  = {en}
}
@article{HeuermannSchiek1991,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {Robuster Algorithmus zur Streuparameterbestimmung f{\"u}r systemfehlerkorrigierte Netzwerkanalysatoren},
  series = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 35. 1991 (1991)},
  journal   = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 35. 1991 (1991)},
  pages     = {555 -- 556},
  year      = {1991},
  language  = {de}
}
@article{HillenEckenbachQuadfliegetal.1991,
  author    = {Hillen, Walter and Eckenbach, W. and Quadflieg, Peter and Zaengel, Thomas T.},
  title     = {Signal-to-noise performance of a CsI fluorescent screen},
  series = {Medical Imaging V: Image physics},
  journal   = {Medical Imaging V: Image physics},
  isbn      = {0-8194-0538-8},
  pages     = {120 -- 131},
  year      = {1991},
  language  = {en}
}
@article{HoettgesArnoldRouve1991,
  author    = {H{\"o}ttges, J{\"o}rg and Arnold, Uwe and Rouv{\´e}, Gerhard},
  title     = {Grundlagenuntersuchungen zur Schadstoffausbreitung in Fl{\"u}ssen},
  series = {Schadstofftransport in Grund- und Oberfl{\"a}chengew{\"a}ssern / Rouv{\´e}, Gerhard [Hrsg.]},
  journal   = {Schadstofftransport in Grund- und Oberfl{\"a}chengew{\"a}ssern / Rouv{\´e}, Gerhard [Hrsg.]},
  address   = {Aachen},
  pages     = {378 S. : Ill., zahlr. graph. Darst.},
  year      = {1991},
  language  = {de}
}
@article{JacobsQuernheimAghadavoodiJolfaei1991,
  author    = {Jacobs, Stephan and Quernheim, Ulrich and Aghadavoodi Jolfaei, Masoud},
  title     = {Performance Evalutation of three Access Protocols for VSAT Networks / Ulrich Quernheim, Stephan Jacobs, Masoud Aghadavoodi Jolfaei},
  series = {Proceedings of the second European Conference on Satellite Communications : ECSC-2 ; Palais de Congr{\`e}s, Li{\`e}ge, Belgium, 22 - 24 October 1991 / [ed.: Brigitte Kaldeich]},
  journal   = {Proceedings of the second European Conference on Satellite Communications : ECSC-2 ; Palais de Congr{\`e}s, Li{\`e}ge, Belgium, 22 - 24 October 1991 / [ed.: Brigitte Kaldeich]},
  publisher = {ESA Publ. Div.},
  address   = {Noordwijk},
  isbn      = {92-9092-170-6},
  pages     = {XXXII, 533 S. : Ill., graph. Darst.},
  year      = {1991},
  language  = {en}
}
@misc{Jeromin1991,
  author    = {Jeromin, G{\"u}nter Erich},
  title     = {Verfahren zur Herstellung von optisch aktiven Alkoholen und optisch aktiven Kohlens{\"a}urediestern mit Hilfe von Lipasen : Offenlegungsschrift DE4009891A1 ; Offenlegungstag: 02.10.1991},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {6 S. : graph. Darst.},
  year      = {1991},
  language  = {de}
}
@misc{JerominPastorekOrthetal.1991,
  author    = {Jeromin, G{\"u}nter Erich and Pastorek, Emmerich and Orth, Winfried and Fickert, Werner},
  title     = {Verfahren zur Herstellung von 5-Alkylchinolins{\"a}uren und Mittel zur Durchf{\"u}hrung des Verfahrens : Europ{\"a}ische Patentschrift EP0247277B1 ; Ver{\"o}ffentlichungstag im Patentblatt: 17.10.1991 / Anmelder: R{\"u}tgerswerke AG, 6000 Frankfurt. Erfinder: Emmerich Pastorek ; Winfried Orth ; G{\"u}nter Jeromin ; Werner Fickert ...},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {9 S. : graph. Darst.},
  year      = {1991},
  language  = {de}
}
@article{JerominScheidt1991,
  author    = {Jeromin, G{\"u}nter Erich and Scheidt, Annette},
  title     = {Aliphatic optically active alcohols by enzyme-aided synthesis},
  series = {Tetrahedron Letters . 32 (1991), H. 48},
  journal   = {Tetrahedron Letters . 32 (1991), H. 48},
  isbn      = {0040-4039},
  pages     = {7021 -- 7024},
  year      = {1991},
  language  = {en}
}
@misc{JerominSeubertBeilharzetal.1991,
  author    = {Jeromin, G{\"u}nter Erich and Seubert, Bernhard and Beilharz, Helmut and Fickert, Werner [u.a.]},
  title     = {Niedermolekulare Alkalihuminate : Verfahren zur ihrer Herstellung und Verwendung ; Europ{\"a}ische Patentschrift EP0281679B1 ; Ver{\"o}ffentlichungstag im Patentblatt: 01.08.1991 / Anmelder: R{\"u}tgerswerke AG, 6000 Frankfurt. Erfinder: Bernhard Seubert ; Helmut Beilharz ; G{\"u}nter Jeromin ; Werner Fickert ...},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {7 S.},
  year      = {1991},
  language  = {de}
}
@misc{JerominSeubertBeilharzetal.1991,
  author    = {Jeromin, G{\"u}nter Erich and Seubert, Bernhard and Beilharz, Helmut and Fickert, Werner [u.a.]},
  title     = {Verfahren zur Herstellung von niedermolekularen Alkalihuminaten : Europ{\"a}ische Patentschrift EP0281678B1 ; Ver{\"o}ffentlichungstag im Patentblatt: 13.06.1991 / Anmelder: R{\"u}tgerswerke AG, 6000 Frankfurt. Erfinder: Bernhard Seubert ; Helmut Beilharz ; G{\"u}nter Jeromin ; Werner Fickert ...},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {8 S.},
  year      = {1991},
  language  = {de}
}
@article{Kern1991,
  author    = {Kern, Alexander},
  title     = {Simulation and measurement of melting effects on metal sheets caused by direct lightning strikes},
  series = {1991 International Aerospace and Ground Conference on Lightning and Static Electricity : proceedings of a conference ... held at Cocoa Beach, Florida, April 16-19, 1991 / NASA},
  journal   = {1991 International Aerospace and Ground Conference on Lightning and Static Electricity : proceedings of a conference ... held at Cocoa Beach, Florida, April 16-19, 1991 / NASA},
  address   = {Washington, DC},
  year      = {1991},
  language  = {en}
}
@article{KernHasseWiesingeretal.1991,
  author    = {Kern, Alexander and Hasse, P. and Wiesinger, J. and Zischank, Wolfgang J.},
  title     = {Aktuelles aus der Blitzforschung},
  series = {ETZ : Elektrotechnik + Automation. 112 (1991), H. 1},
  journal   = {ETZ : Elektrotechnik + Automation. 112 (1991), H. 1},
  isbn      = {0170-1711},
  year      = {1991},
  language  = {de}
}
@article{KernWiesingerZischank1991,
  author    = {Kern, Alexander and Wiesinger, J. and Zischank, Wolfgang J.},
  title     = {Calculation of the longitudinal voltage along metal tubes caused by lightning currents and protection measures},
  series = {Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30 1991},
  journal   = {Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30 1991},
  publisher = {Techn. Univ.},
  address   = {Dresden},
  year      = {1991},
  language  = {en}
}
@article{Kettern1991,
  author    = {Kettern, J{\"u}rgen},
  title     = {Deponiesickerwasserentsorgung nach dem Stand der Technik},
  series = {Wasser, Abwasser, Abfall : Perspektiven f{\"u}r das Jahr 2000 / 23. Essener Tagung vom 28.3. - 30.3.1990 in Essen. Institut zur F{\"o}rderung der Wasserg{\"u}te- und Wassermengenwirtschaft ... Im Einvernehmen mit dem Ministerium f{\"u}r Umwelt, Raumordnung und Landwirtsc},
  journal   = {Wasser, Abwasser, Abfall : Perspektiven f{\"u}r das Jahr 2000 / 23. Essener Tagung vom 28.3. - 30.3.1990 in Essen. Institut zur F{\"o}rderung der Wasserg{\"u}te- und Wassermengenwirtschaft ... Im Einvernehmen mit dem Ministerium f{\"u}r Umwelt, Raumordnung und Landwirtsc},
  publisher = {Ges. zur F{\"o}rderung der Siedlungswasserwirtschaft an der RWTH},
  address   = {Aachen},
  pages     = {769 -- 785},
  year      = {1991},
  language  = {de}
}
@incollection{KollerStellberg1991,
  author    = {Koller, R. and Stellberg, Michael},
  title     = {Schnappverbindungen},
  series = {Handbuch der Verbindungstechnik / hrsg. von Carl-Otto Bauer},
  booktitle = {Handbuch der Verbindungstechnik / hrsg. von Carl-Otto Bauer},
  publisher = {Hanser},
  address   = {M{\"u}nchen},
  isbn      = {3-446-14609-1},
  pages     = {294 -- 324},
  year      = {1991},
  language  = {de}
}
@article{KotterLiRiekert1991,
  author    = {Kotter, Michael and Li, D. X. and Riekert, Lothar},
  title     = {Partielle Oxidation von o-Xylol zu Phthals{\"a}ureanhydrid in einem strukturierten Festbettreaktor},
  series = {Katalyse : katalytische Abgasreinigung, Zeolithe, homogene Katalyse, selektive Reaktionen, Herstellung und Charakterisierung, Ionenleiter, Elektrokatalyse, SLPC-Katalysatoren, Suspensionsphase ; Vortr{\"a}ge von der DECHEMA-Jahrestagung 1990, 31. Mai und 1. Juni 1990 / hrsg. von H. Kral. - (Deutsche Gesellschaft f{\"u}r Chemisches Apparatewesen, Chemische Technik und Biotechnologie: DECHEMA-Monographien ; 122)},
  journal   = {Katalyse : katalytische Abgasreinigung, Zeolithe, homogene Katalyse, selektive Reaktionen, Herstellung und Charakterisierung, Ionenleiter, Elektrokatalyse, SLPC-Katalysatoren, Suspensionsphase ; Vortr{\"a}ge von der DECHEMA-Jahrestagung 1990, 31. Mai und 1. Juni 1990 / hrsg. von H. Kral. - (Deutsche Gesellschaft f{\"u}r Chemisches Apparatewesen, Chemische Technik und Biotechnologie: DECHEMA-Monographien ; 122)},
  publisher = {VCH},
  address   = {Weinheim},
  isbn      = {3-527-10216-7},
  pages     = {93 -- 123},
  year      = {1991},
  language  = {de}
}
@book{KotterLintzTurek1991,
  author    = {Kotter, Michael and Lintz, Hans-G{\"u}nther and Turek, Thomas},
  title     = {Entwicklung eines SCR-Katalysators f{\"u}r instation{\"a}re Reaktionsf{\"u}hrung. - (Forschungsbericht KfK-PEF ; 79)},
  publisher = {Kernforschungszentrum},
  address   = {Karlsruhe},
  pages     = {74 S. : Ill., graph. Darst.},
  year      = {1991},
  language  = {de}
}
@article{Krause1991,
  author    = {Krause, Gregor},
  title     = {High Field Phenomena of Polymeric Insulation Investigated at PE Needle-Plane Specimen},
  series = {Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30, 1991 / Technische Universit{\"a}t Dresden},
  journal   = {Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30, 1991 / Technische Universit{\"a}t Dresden},
  publisher = {TU Dresden},
  address   = {Dresden},
  year      = {1991},
  language  = {en}
}
@book{Krause1991,
  author    = {Krause, Gregor},
  title     = {Leitungsmechanismen und Raumladungsph{\"a}nomene in Polyolefinen bei Hochfeldbeanspruchung},
  publisher = {Verl. d. Augustinus-Buchh.},
  address   = {Aachen},
  isbn      = {3-925038-97-3},
  pages     = {137 S. : graph. Darst.},
  year      = {1991},
  language  = {de}
}
@article{KrauseNeubertPietsch1991,
  author    = {Krause, Gregor and Neubert, R. and Pietsch, R.},
  title     = {Elektrische Eigenschaften von Kunststoffen},
  publisher = {RWTH},
  address   = {Aachen},
  year      = {1991},
  language  = {de}
}
@article{KaemperPappasMilleretal.1991,
  author    = {K{\"a}mper, Klaus-Peter and Pappas, D. P. and Miller, B. P. and Hopster, H.},
  title     = {Spin-dependent electron attenuation by transmission through thin ferromagnetic films . Pappas, D. P.; K{\"a}mper,K.-P.; Miller, B. P.; Hopster, H.; Fowler, D. E.; Brundle, C. R.; Luntz, A. C.; Shen, Z.-X.},
  series = {Physical Review Letters. 66 (1991), H. 4},
  journal   = {Physical Review Letters. 66 (1991), H. 4},
  isbn      = {1079-7114},
  pages     = {504 -- 507},
  year      = {1991},
  language  = {en}
}
@article{KaemperPappasMilleretal.1991,
  author    = {K{\"a}mper, Klaus-Peter and Pappas, D. P. and Miller, B. P. and Hopster, H.},
  title     = {Magnetism of ultrathin films of Fe on Cu(100). Pappas, D. P; K{\"a}mper, K.-P.; Miller, B. P.; Hopster, H.; Fowler, D. E.; Luntz, A. C.; Brundle, C.R.; Shen, Z.-X.},
  series = {Journal of Applied Physics. 69 (1991), H. 8},
  journal   = {Journal of Applied Physics. 69 (1991), H. 8},
  isbn      = {1089-7550},
  pages     = {5209 -- 521},
  year      = {1991},
  language  = {en}
}
@article{Lassonczyk1991,
  author    = {Lassonczyk, Beate},
  title     = {Bodenentwicklung auf Terrassenschottern im ariden Bereich von NO-Somalia},
  series = {Mitteilungen der Deutschen Bodenkundlichen Gesellschaft. 66 (1991), H. 2},
  journal   = {Mitteilungen der Deutschen Bodenkundlichen Gesellschaft. 66 (1991), H. 2},
  isbn      = {0343-107x},
  pages     = {1153 -- 1156},
  year      = {1991},
  language  = {de}
}
@article{Mackenstein1991,
  author    = {Mackenstein, Hans},
  title     = {The role of Germany, Japan and the United States on the ECU-bond markets / Hans Wilhelm Mackenstein},
  series = {De pecunia. 3 (1991), H. 1},
  journal   = {De pecunia. 3 (1991), H. 1},
  isbn      = {1015-6283},
  pages     = {113 -- 150},
  year      = {1991},
  language  = {en}
}
@book{Maether1991,
  author    = {Maether, Christiane},
  title     = {Figur und Fragment : Gem{\"a}lde und Zeichnungen 1985-1990},
  address   = {Kaiserslautern},
  isbn      = {3-89422-039-2},
  pages     = {94 S. : {\"u}berw. Ill.},
  year      = {1991},
  language  = {de}
}
@book{Mayer1991,
  author    = {Mayer, Claudia},
  title     = {"Vom Gl{\"u}ck der Zwitter" : Geschlechterrolle und Geschlechterverh{\"a}ltnis bei G{\"u}nter Grass / Claudia Mayer-Iswandy},
  publisher = {Lang},
  address   = {Frankfurt am Main [u.a.]},
  isbn      = {3-631-43508-8},
  pages     = {341 S.},
  year      = {1991},
  language  = {de}
}
@article{Mayer1991,
  author    = {Mayer, Claudia},
  title     = {Frauen und Revolution: Der weibliche Anteil an der Geschichte. Christa Wolf und das Ende der DDR},
  series = {Women in German Newsletter. 56 (1991)},
  journal   = {Women in German Newsletter. 56 (1991)},
  pages     = {29 -- 30},
  year      = {1991},
  language  = {de}
}
@article{Mayer1991,
  author    = {Mayer, Claudia},
  title     = {Aspekte der Wiedervereinigung in der aktuellen deutschen Literatur.},
  series = {Forum Deutsch : Informationen, Meinungen, Materialien und Tips f{\"u}r kanadische Deutschlehrer / St{\"a}ndige Konferenz kanadischer Deutschlehrer (1991)},
  journal   = {Forum Deutsch : Informationen, Meinungen, Materialien und Tips f{\"u}r kanadische Deutschlehrer / St{\"a}ndige Konferenz kanadischer Deutschlehrer (1991)},
  pages     = {16 -- 22},
  year      = {1991},
  language  = {de}
}
@article{Meliss1991,
  author    = {Meliß, Michael},
  title     = {Regenerative Energiequellen},
  series = {Brennstoff, W{\"a}rme, Kraft : BWK ; das Energie-Fachmagazin. Bd. 43 (1991), H. 4},
  journal   = {Brennstoff, W{\"a}rme, Kraft : BWK ; das Energie-Fachmagazin. Bd. 43 (1991), H. 4},
  issn      = {0006-9612 (Print) ; 1436-4883 (E-Journal)},
  pages     = {174 -- 181},
  year      = {1991},
  language  = {de}
}
@article{MelissSelzerZiesing1991,
  author    = {Meliß, Michael and Selzer, H. and Ziesing, H. J.},
  title     = {CO2-Reduktionspotentiale erneuerbarer Energiequellen},
  series = {Energiewirtschaftliche Tagesfragen. Jg. 41 (1991), H. 5},
  journal   = {Energiewirtschaftliche Tagesfragen. Jg. 41 (1991), H. 5},
  issn      = {0013-743X ; 0720-6240},
  pages     = {291 -- 299},
  year      = {1991},
  language  = {de}
}
@article{MerschenzQuack1991,
  author    = {Merschenz-Quack, Angelika},
  title     = {Betriebsanweisungen beim Umgang mit Gefahrstoffen},
  series = {Elektro-Praktiker : Fachzeitschrift f{\"u}r Handwerk und Industrie},
  volume    = {Bd. 45},
  journal   = {Elektro-Praktiker : Fachzeitschrift f{\"u}r Handwerk und Industrie},
  number    = {H. 10},
  issn      = {0013-5569},
  pages     = {644 -- 649},
  year      = {1991},
  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{PaschmannTrost1991,
  author    = {Paschmann, Hans and Trost, Heinrich},
  title     = {Fr{\"u}he Kriechverformungen des Betons / Trost, Heinrich; Paschmann, Hans},
  series = {Versuche zum Kriechen und zur Restfestigkeit von Beton bei mehrachsiger Beanspruchung / von Norbert Lanig ; Siegfried St{\"o}ckl ; Herbert Kupfer},
  journal   = {Versuche zum Kriechen und zur Restfestigkeit von Beton bei mehrachsiger Beanspruchung / von Norbert Lanig ; Siegfried St{\"o}ckl ; Herbert Kupfer},
  publisher = {Beuth},
  address   = {Berlin},
  isbn      = {3-410-65820-3},
  pages     = {111 -- 112},
  year      = {1991},
  language  = {de}
}
@article{PeekenRosenkranzSchelenz1991,
  author    = {Peeken, Heinz and Rosenkranz, Josef and Schelenz, R.},
  title     = {Ber{\"u}cksichtigung des Einflusses der Gleitlagergeh{\"a}usesteifigkeit auf das dynamische Verhalten von Rotoren},
  series = {Antriebstechnik : Organ der Forschungsvereinigung Antriebstechnik e.V.},
  volume    = {30},
  journal   = {Antriebstechnik : Organ der Forschungsvereinigung Antriebstechnik e.V.},
  number    = {9},
  issn      = {0341-2652},
  pages     = {71 -- 75},
  year      = {1991},
  language  = {de}
}
@article{PietschKurbel1991,
  author    = {Pietsch, Wolfram and Kurbel, Karl},
  title     = {Eine Beurteilung konnektionistischer Modelle auf der Grundlage ausgew{\"a}hlter Anwendungsprobleme und Vorschl{\"a}ge zur Erweiterung / Kurbel, Karl; Pietsch, Wolfram},
  series = {Wirtschaftsinformatik. 33 (1991), H. 5},
  journal   = {Wirtschaftsinformatik. 33 (1991), H. 5},
  isbn      = {0937-6429},
  pages     = {355 -- 364},
  year      = {1991},
  language  = {de}
}
@article{RaatschenHolznerBorrmannetal.1991,
  author    = {Raatschen, Hans-J{\"u}rgen and Holzner, M. and Borrmann, M. and Pfrang, W.},
  title     = {Numerische Simulation von Umformprozessen mit dem expliziten FE-Programm UFO-3D},
  pages     = {91 -- 105},
  year      = {1991},
  language  = {de}
}
@article{ReisselWick1991,
  author    = {Reißel, Martin and Wick, J.},
  title     = {Eddy Current Computation / Reissel, M. ; Wick, J.},
  series = {Proceedings of the Fifth European Conference on Mathematics in Industry : June 6 - 9, 1990 Lahti / ed. by Matti Heili{\"o}},
  journal   = {Proceedings of the Fifth European Conference on Mathematics in Industry : June 6 - 9, 1990 Lahti / ed. by Matti Heili{\"o}},
  publisher = {Teubner},
  address   = {Stuttgart},
  isbn      = {3-519-02176-5},
  pages     = {335 -- 338},
  year      = {1991},
  language  = {en}
}
@article{SchmitzBartzHansen1991,
  author    = {Schmitz, G{\"u}nter and Bartz, R. and Hansen, W.},
  title     = {Flexibles elektronisches Verbrennungsmotoren-Indiziersystem (FEVIS)},
  series = {Vortr{\"a}ge und Kurzreferate : 13. und 14. November 1990, Congress Centrum, Magdeburg / Technische Universit{\"a}t "Otto von Guericke" Magdeburg, Fakult{\"a}t f{\"u}r Thermischen Maschinenbau, Institut f{\"u}r Maschinenmeßtechnik, Kolbenmaschinen und Instandhaltung},
  journal   = {Vortr{\"a}ge und Kurzreferate : 13. und 14. November 1990, Congress Centrum, Magdeburg / Technische Universit{\"a}t "Otto von Guericke" Magdeburg, Fakult{\"a}t f{\"u}r Thermischen Maschinenbau, Institut f{\"u}r Maschinenmeßtechnik, Kolbenmaschinen und Instandhaltung},
  address   = {Magdeburg},
  pages     = {485 -- 491},
  year      = {1991},
  language  = {de}
}
@inproceedings{SchwarzerBiegerRickingetal.1991,
  author    = {Schwarzer, Klemens and Bieger, W. and Ricking, N. and Bansal, Narenda K.},
  title     = {Solar cooker with a rock bed cum oil storage},
  series = {1991 Solar World Congress : : proceedings of the Biennial Congress of the International Solar Energy Society, Denver, Colorado, USA, 19 - 23 August 1991 / ed. by M. E. Arden. Bd. 3,II},
  booktitle = {1991 Solar World Congress : : proceedings of the Biennial Congress of the International Solar Energy Society, Denver, Colorado, USA, 19 - 23 August 1991 / ed. by M. E. Arden. Bd. 3,II},
  publisher = {Pergamon Pr.},
  address   = {Oxford},
  isbn      = {0-08-041690-x},
  pages     = {3751 -- 3756},
  year      = {1991},
  language  = {en}
}
@inproceedings{SchwarzerWiedenfeldBansaletal.1991,
  author    = {Schwarzer, Klemens and Wiedenfeld, M. and Bansal, Narenda K. and Ertl, Karl-Heinz},
  title     = {A novel solar sterilization and water destillation system : experiment and thermodynamic analysis},
  series = {1991 Solar World Congress : : proceedings of the Biennial Congress of the International Solar Energy Society, Denver, Colorado, USA, 19 - 23 August 1991 / ed. by M. E. Arden. Bd. 2,II},
  booktitle = {1991 Solar World Congress : : proceedings of the Biennial Congress of the International Solar Energy Society, Denver, Colorado, USA, 19 - 23 August 1991 / ed. by M. E. Arden. Bd. 2,II},
  publisher = {Pergamon Pr.},
  address   = {Oxford},
  isbn      = {0-08-041690-x},
  pages     = {2276 -- 2281},
  year      = {1991},
  language  = {en}
}
@article{Siebel1991,
  author    = {Siebel, Lothar},
  title     = {Schallschutz von Trenndecken},
  series = {DBZ Deutsche Bauzeitschrift. 39 (1991), H. 12},
  journal   = {DBZ Deutsche Bauzeitschrift. 39 (1991), H. 12},
  isbn      = {0011-4782},
  pages     = {1795 -- 1799},
  year      = {1991},
  language  = {de}
}