@article{ArtmannLiSeipeltetal.1999,
  author    = {Artmann, Gerhard and Li, Anlan and Seipelt, H. and M{\"u}ller, C. [u.a.]},
  title     = {Effects of salicylic acid derivatives on red blood cell membranes. Li, Anlan; Seipelt, H.; M{\"u}ller, C.;Shi, Yong de; Artmann, Gerhard Michael},
  series = {Pharmacology and Toxicology. 85 (1999)},
  journal   = {Pharmacology and Toxicology. 85 (1999)},
  isbn      = {0902-9938},
  pages     = {206 -- 211},
  year      = {1999},
  language  = {en}
}
@book{PfeifferKnepper1999,
  author    = {Pfeiffer, Johann and Knepper, Ludger},
  title     = {Diplom-Ingenieur/Diplom-Ingenieurin (Fachhochschule) Maschinenbau Energie- und W{\"a}rmetechnik},
  publisher = {Bertelsmann},
  address   = {Bielefeld},
  pages     = {Losebl.-Ausg.},
  year      = {1999},
  language  = {de}
}
@book{KnepperPfeiffer1999,
  author    = {Knepper, Ludger and Pfeiffer, Johann},
  title     = {Diplom-Ingenieur / Diplom-Ingenieurin (Fachhochschule) Maschinenbau, Energie- und W{\"a}rmetechnik},
  publisher = {Bertelsmann},
  address   = {Bielefeld},
  pages     = {Loseblattausg.},
  year      = {1999},
  language  = {de}
}
@book{BenknerDavid1999,
  author    = {Benkner, Thorsten and David, Klaus},
  title     = {Digitale Mobilfunksysteme : Grundlagen und aktuelle Systeme. - 2., aktualis. u. erw. Aufl.},
  publisher = {Teubner},
  address   = {Stuttgart},
  isbn      = {3-519-16181-8},
  pages     = {XIII, 457 S.. : graph. Darst.},
  year      = {1999},
  language  = {en}
}
@article{JanzVoss1999,
  author    = {Janz, Norbert and Voß, K.},
  title     = {Dienstleistungsexport: Innovative Unternehmen sind exportst{\"a}rker / Janz, N. und k. Voß},
  year      = {1999},
  language  = {de}
}
@book{JanzEblingGottschalketal.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Licht, Georg},
  title     = {Dienstleistungen in der Zukunft: Innovationsaktivit{\"a}ten im Dienstleistungssektor. Befragung 1998 / Janz, N., G. Ebling, S. Gottschalk, G. Licht und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {1999},
  language  = {de}
}
@book{SchmidtMuellerStoecker1999,
  author    = {Schmidt, Ludwig and M{\"u}ller, Thomas and St{\"o}cker, Ernst E.},
  title     = {Die Organschaft im K{\"o}rperschaftsteuer-, Gewerbesteuer- und Umsatzsteuerrecht},
  edition   = {5. Aufl.},
  publisher = {Verl. Neue Wirtschafts-Briefe},
  address   = {Herne},
  isbn      = {3-482-44605-9},
  pages     = {423 S.},
  year      = {1999},
  language  = {de}
}
@article{FoersterLuethSchaepers1999,
  author    = {F{\"o}rster, Arnold and L{\"u}th, Hans and Sch{\"a}pers, Thomas},
  title     = {Die neue Welt},
  series = {Spektrum der Wissenschaft (1999)},
  journal   = {Spektrum der Wissenschaft (1999)},
  isbn      = {0170-2971},
  pages     = {90 -- 93},
  year      = {1999},
  language  = {de}
}
@article{Wollert1999,
  author    = {Wollert, J{\"o}rg},
  title     = {Die Kunst des Weglassens : Windows NT Embedded - Was die neue Version vom Standard-NT unterscheidet},
  series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler},
  volume    = {Bd. 48},
  journal   = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler},
  number    = {H. 23},
  issn      = {0013-5658},
  pages     = {116 -- 121},
  year      = {1999},
  language  = {de}
}
@book{FredebeulKrein1999,
  author    = {Fredebeul-Krein, Markus},
  title     = {Die Internationalisierung der M{\"a}rkte f{\"u}r Telekommunikationsdienste. IZ-Erhebung 1999},
  publisher = {Institut f{\"u}r Wirtschaftspolitik an der Universit{\"a}t K{\"o}ln},
  address   = {K{\"o}ln},
  year      = {1999},
  language  = {de}
}