@book{JanzLichtEblingetal.1999,
  author    = {Janz, Norbert and Licht, Georg and Ebling, G{\"u}nther and Niggemann, Hiltrud},
  title     = {Innovation in the Service Sector. Selected Facts and Some Policy Conclusions / Licht, G., G. Ebling, N. Janz, H. Niggemann},
  publisher = {European Commission},
  address   = {Luxembourg},
  year      = {1999},
  language  = {en}
}
@book{Jochim1999,
  author    = {Jochim, Haldor E.},
  title     = {Verkehrswirtschaftliche Ermittlung von Qualit{\"a}tsmaßst{\"a}ben im Eisenbahnbetrieb},
  publisher = {Selbstverlag},
  address   = {Aachen},
  pages     = {111 S.},
  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{Laack1999,
  author    = {Laack, Walter van},
  title     = {Der Schl{\"u}ssel zur Ewigkeit},
  publisher = {van Laack},
  address   = {Aachen},
  isbn      = {978-3-9805239-4-3},
  pages     = {285 S.},
  year      = {1999},
  language  = {de}
}
@book{LauthGoetzHarreus1999,
  author    = {Lauth, Jakob and Goetz, Norbert and Harreus, Albrecht},
  title     = {Elj{\´a}r{\´a}s O-(2-hidroxi-alkil)-oximok el{\~o}{\´a}ll{\´i}t{\´a}s{\´a}ra : [Ungarische Patentanmeldung ; Ver{\"o}ffentlichungsnummer HU216742 ; Ver{\"o}ffentlichungsdatum: 1999-08-30] / Anmelder: BASF AG. Erfinder: Gehrer Eugen ; Goetz Norbert ; Harreus Albrecht ... Guenther Lauth ...},
  publisher = {Gehrer, Eugen},
  address   = {[Budapest]},
  pages     = {[Hungarian Patent Office]},
  year      = {1999},
  language  = {de}
}
@book{LauthHagemeyerLautensacketal.1999,
  author    = {Lauth, Jakob and Hagemeyer, Alfred and Lautensack, Thomas and Deimling, Axel},
  title     = {Katalysator und Verfahren f{\"u}r die katalytische oxidative Dehydrierung von Alkylaromaten = Catalyst and process for the catalytically oxidative dyhydrogenation of alkyl aromatics : Europ{\"a}ische Patentschrift EP0768996B1 ; EP-Patenterteilungsdatum: 12.05.1999 / Anmelder: BASF AG, 67063 Ludwigshafen. Erfinder: Alfred Hagemeyer ; G{\"u}nter Lauth ; Thomas Lautensack ; Axel Deimling},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {[M{\"u}nchen u.a.]},
  pages     = {8 S. : Ill.},
  year      = {1999},
  language  = {de}
}
@book{LauthHarreusGoetzetal.1999,
  author    = {Lauth, Jakob and Harreus, Albrecht and G{\"o}tz, Norbert and Rang, Harald [u.a.]},
  title     = {Preparation O-(2-Hydroxyalkyl)Oximes = of Verfahren zur Herstellung von O-(2-Hydroxy)Oximen : Europ{\"a}ische Patentschrift EP0775107B1 ; Ver{\"o}ffentlichungstag im Patentblatt: 18.11.1999 / Anmelder: BASF AG, 67063 Ludwigshafen. Erfinder: Albrecht Harreus ; Norbert G{\"o}tz ; Harald Rang ... G{\"u}nter Lauth},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {[M{\"u}nchen u.a.]},
  pages     = {8 S. : graph. Darst.},
  year      = {1999},
  language  = {en}
}
@book{Ley1999,
  author    = {Ley, Wilfried},
  title     = {Raumflugbetrieb : Gemeinschaftsveranstaltung der FH Aachen, der DGLR und der DLR / 12. Raumfahrt-Kolloquium an der Fachhochschule Aachen, 11. November 1999. / Ley Wilfried [Hrsg.]},
  publisher = {DGLR},
  address   = {Bonn},
  isbn      = {3-932182-07-03},
  pages     = {VIII, 215 S. : zahlr. Ill., graph. Darst.},
  year      = {1999},
  language  = {de}
}
@book{Meliss1999,
  author    = {Meliß, Michael},
  title     = {REGLOB 99 : Globale Betrachtung regenerativer Energieressourcen und ihrer technischen Nutzungsm{\"o}glichkeiten},
  publisher = {Solar-Institut},
  address   = {J{\"u}lich},
  year      = {1999},
  language  = {de}
}
@book{Mertens1999,
  author    = {Mertens, Josef},
  title     = {Reduktion des aerodynamischen Widerstands (RaWid) : Abschlußbericht ; Laufzeit des Vorhaben, Berichtszeitraum: 01.07.1995 bis 31.12.1998 / Verf.: J. Mertens},
  publisher = {DaimlerChrysler Aerospare Airbus GmbH},
  address   = {Hamburg},
  pages     = {31 Bl. : Ill., graph. Darst.},
  year      = {1999},
  language  = {de}
}