@article{ArtmannMontanusTeitel1991,
  author    = {Artmann, Gerhard and Montanus, M. and Teitel, P.},
  title     = {Die photometrische Kapillaraggregation- ein neues Verfahren zur Messung der Erythrozytenaggregation. Montanus, M.; Artmann, Gerhard Michael; Teitel, P.},
  series = {Biomedizinische Technik = Biomedical engineering. 36 (1991)},
  journal   = {Biomedizinische Technik = Biomedical engineering. 36 (1991)},
  isbn      = {0013-5585},
  pages     = {213 -- 215},
  year      = {1991},
  language  = {de}
}
@article{ArtmannWitte1991,
  author    = {Artmann, Gerhard and Witte, Ch.},
  title     = {Expertensystem f{\"u}r Personal Computer zur Strukturbestimmung des Circulus Arteriosus Willisii mittels transkranieller Dopplersonografie. Witte, Ch.; Artmann, Gerhard Michael},
  series = {Biomedizinische Technik = Biomedical engineering. 36 (1991)},
  journal   = {Biomedizinische Technik = Biomedical engineering. 36 (1991)},
  isbn      = {0013-5585},
  pages     = {228 -- 230},
  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     = {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{FoersterBruggerMeiners1991,
  author    = {F{\"o}rster, Arnold and Brugger, H. and Meiners, U.},
  title     = {High quality GaAs-based resonant tunneling diodes for high frequency device applications / H. Brugger ; U. Meiners ; C. W{\"o}lk ... A. F{\"o}rster ...},
  series = {Proceedings : August 5 - 7, 1991, Cornell University, Ithaca, New York / R. J. Trew, General Chairman},
  journal   = {Proceedings : August 5 - 7, 1991, Cornell University, Ithaca, New York / R. J. Trew, General Chairman},
  publisher = {Inst. of Electrical and Electronics Engineers},
  address   = {Piscataway, NJ},
  isbn      = {0-7803-0491-8},
  pages     = {39 -- ff.},
  year      = {1991},
  language  = {en}
}
@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{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{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{Ziemons1991,
  author    = {Ziemons, Karl},
  title     = {Comparison of forward hadrons produced in muon interactions on nuclear targets and deuterium},
  series = {Zeitschrift f{\"u}r Physik C Particles and Fields},
  volume    = {52},
  journal   = {Zeitschrift f{\"u}r Physik C Particles and Fields},
  number    = {1},
  isbn      = {1431-5858},
  pages     = {1 -- 11},
  year      = {1991},
  abstract  = {Differential multiplicities of forward produced hadrons in deep inelastic muon scattering on nuclear targets have been compared with those from deuterium. The ratios are observed to increase towards unity as the virtual photon energy increases with no significant dependence on the other muon kinematic variables. The hadron transverse momentum distribution is observed to be broadened in nuclear targets. The dependence on the remaining hadron variables is investigated and the results are discussed in the framework of intranuclear interaction models and in the context of the EMC effect.},
  language  = {en}
}
@inproceedings{DoerenKroeschel1991,
  author    = {D{\"o}ren, Horst-Peter and Kr{\"o}schel, R.},
  title     = {Plasma-Spritzen},
  series = {Schweisszusatzwerkstoffe : Fortschritte, Erfahrungen, Tendenzen. 2. Aachener Schweisstechnik-Kolloquium, 7. bis 8. M{\"a}rz 1991},
  booktitle = {Schweisszusatzwerkstoffe : Fortschritte, Erfahrungen, Tendenzen. 2. Aachener Schweisstechnik-Kolloquium, 7. bis 8. M{\"a}rz 1991},
  editor    = {Dilthey, Ulrich},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-140802-6},
  pages     = {147 -- 167},
  year      = {1991},
  language  = {de}
}
@phdthesis{Stellberg1991,
  author    = {Stellberg, Michael},
  title     = {Systematische Konstruktion von Spann- und Schnappverbindungen},
  pages     = {III, 166 S. : zahlr. Ill. und graph. Darst.},
  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{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}
}
@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{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{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}
}
@article{ElbersMuratyan1991,
  author    = {Elbers, Gereon and Muratyan, Simone},
  title     = {Problematik verkehrsbezogener Außenluftmessungen von Partikeln (Dieselruß)},
  series = {+ Krebserzeugende Stoffe in der Umwelt : Herkunft, Messung, Risiko, Minimierung ; Kolloquium Mannheim, 23. bis 25. April 1991 / Kommission Reinhaltung der Luft im VDI und DIN},
  journal   = {+ Krebserzeugende Stoffe in der Umwelt : Herkunft, Messung, Risiko, Minimierung ; Kolloquium Mannheim, 23. bis 25. April 1991 / Kommission Reinhaltung der Luft im VDI und DIN},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-090888-2},
  pages     = {143},
  year      = {1991},
  language  = {de}
}
@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{Grotendorst1991,
  author    = {Grotendorst, Johannes},
  title     = {Maple programs for converting series expansions to rational functions using the Levin transformation automatic generation of FORTRAN functions for numerical applications},
  series = {Computer Physics Communications. 55 (1991), H. 3},
  journal   = {Computer Physics Communications. 55 (1991), H. 3},
  isbn      = {0010-4655},
  pages     = {325 -- 335},
  year      = {1991},
  language  = {en}
}