@book{Baatz1981,
  author    = {Baatz, Udo},
  title     = {Diplom-Ingenieur / Diplom-Ingenieurin an Fachhochschulen: Fachrichtung Maschinenbau : Stand: Dezember 1980},
  publisher = {Bertelsmann},
  address   = {Bielefeld},
  pages     = {31 S., Beil.},
  year      = {1981},
  language  = {de}
}
@article{ArpshofenGerlingSommeretal.1981,
  author    = {Arpshofen, Ingo and Gerling, Ulrich and Sommer, Ferdinand and Schultheiss, Emil and Predel, Bruno and Pool, M. J.},
  title     = {Experimentelle Bestimmung der integralen Mischungsenthalpien in den bin{\"a}ren Systemen Pd-Cu und Si-Cu bei 1600 K},
  series = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 72, H. 12},
  journal   = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 72, H. 12},
  issn      = {0044-3093 ; 0179-4841},
  pages     = {842 -- 846},
  year      = {1981},
  language  = {de}
}
@article{ArpshofenGerlingSommeretal.1981,
  author    = {Arpshofen, Ingo and Gerling, Ulrich and Sommer, Ferdinand and Schultheiss, Emil and Predel, Bruno and Pool, M. J.},
  title     = {Bestimmung der Mischungsenthalpien im System Palladium-Silicium bei 1600 K},
  series = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 72, H. 11},
  journal   = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 72, H. 11},
  issn      = {0044-3093 ; 0179-4841},
  pages     = {776 -- 781},
  year      = {1981},
  language  = {de}
}
@article{Alt1981,
  author    = {Alt, Helmut},
  title     = {Wirtschaftlichkeitsberechnung von Investitionen mit dem programmierbaren Taschenrechner},
  series = {3 R international : RRR ; Rohre, Rohrleitungsbau, Rohrleitungstransport},
  volume    = {Jg. 20},
  journal   = {3 R international : RRR ; Rohre, Rohrleitungsbau, Rohrleitungstransport},
  number    = {H. 10},
  issn      = {0340-3386},
  pages     = {561 -- 565},
  year      = {1981},
  language  = {de}
}