@book{Grap1993,
  author    = {Grap, Rolf Dietmar},
  title     = {Neue Formen der Arbeitsorganisation/2 (1993)},
  publisher = {Verl. der Augustinus-Buchh.},
  address   = {Aachen},
  isbn      = {3-86073-096-7},
  year      = {1993},
  language  = {de}
}
@book{Pfeiffer1993,
  author    = {Pfeiffer, Johann},
  title     = {Rechnergest{\"u}tzte Auslegung von Seiltrieben},
  publisher = {Fachhochsch.},
  address   = {Aachen},
  year      = {1993},
  language  = {de}
}
@book{WillmsBeer1993,
  author    = {Willms, Herbert and Beer, Stefan},
  title     = {Regelung eines H2/O2-Dampferzeugers},
  publisher = {DLR, Zentrale Allgemeine Dienste, Versand},
  address   = {K{\"o}ln},
  pages     = {116 S. : graph. Darst.},
  year      = {1993},
  language  = {de}
}
@book{KleemannMeliss1993,
  author    = {Kleemann, Manfred and Meliß, Michael},
  title     = {Regenerative Energiequellen. 2., v{\"o}llig neu bearb. Aufl.},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-55085-2},
  pages     = {XXIII, 315 S. : Ill., graph. Darst., Kt},
  year      = {1993},
  language  = {de}
}
@book{GartzenHeilMang1993,
  author    = {Gartzen, Johannes and Heil, G{\"u}nter and Mang, Thomas},
  title     = {Verfahren zum Behandeln von miteinander mittels Haftvermittler verbundene Materialien / Offenlegungsschrift DE 4127705 A1 ; Offenlegungstag 25.02.1993 / Anmelder: Schering AG},
  publisher = {Deutsches Patentamt},
  address   = {M{\"u}nchen},
  pages     = {4 S.},
  year      = {1993},
  language  = {de}
}
@book{LauthMuellerHoelderich1993,
  author    = {Lauth, Jakob and M{\"u}ller, Ulrich and H{\"o}lderich, Wolfgang},
  title     = {Verfahren zur Herstellung von Alumo- und Silicoalumophosphaten mit AEL-Struktur unter Verwendung von 1,2-Bis(4-pyridyl)ethan : Europ{\"a}ische Patentschrift EP0532993B1 ; Ver{\"o}ffentlichungstag im Patentblatt: 29.04.1993 / Anmelder: BASF AG, 6700 Ludwigshafen. Erfinder: Ulrich M{\"u}ller ; Wolfgang H{\"o}lderich ; G{\"u}nter Lauth},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {[M{\"u}nchen u.a.]},
  pages     = {9 S.},
  year      = {1993},
  language  = {de}
}
@book{SponagelWachowitz1993,
  author    = {Sponagel, Stefan and Wachowitz, Waldemar},
  title     = {Wellendichtung : Europ{\"a}ische Patentschrift DE3621242C1 ; Ver{\"o}ffentlichungstag der Patentschrift : 06.06.1993 / Anmelder: Fa. Carl Freudenberg},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {[M{\"u}nchen u.a.]},
  pages     = {5 S. : Ill.},
  year      = {1993},
  language  = {de}
}
@book{Feuerriegel1993,
  author    = {Feuerriegel, Uwe},
  title     = {Zur Desaktivierung eines Desaktivierung eines Palladium-Tr{\"a}gerkatalysators durch Schwefel¬wasserstoff bei der katalytischen Methanoxidation},
  publisher = {Univ.-Gesamthochsch.},
  address   = {Kassel},
  pages     = {128 S.: graph. Darst.},
  year      = {1993},
  language  = {de}
}