@book{Schauwecker1989,
  author    = {Schauwecker, Hans-Peter},
  title     = {Der GmbH-Gesch{\"a}ftsf{\"u}hrer im deutschen Recht},
  edition   = {1. Aufl.},
  publisher = {Inst. f{\"u}r Europ. Wirtschafts- u. Steuerrecht},
  address   = {Basel},
  isbn      = {3-906512-02-9},
  pages     = {VII, 54 S.},
  year      = {1989},
  language  = {de}
}
@book{Nonhoff1989,
  author    = {Nonhoff, J{\"u}rgen},
  title     = {Entwicklung eines Expertensystems f{\"u}r das DV-Controlling},
  edition   = {1},
  publisher = {Springer Verlag},
  isbn      = {9780387507606},
  pages     = {158 Seiten},
  year      = {1989},
  language  = {de}
}
@book{Thalenhorst1989,
  author    = {Thalenhorst, Jobst},
  title     = {Die Zeitstruktur der Produktion als Ursache langfristiger {\"o}konomischer Dynamik},
  address   = {Frankfurt-Bern-NY-Paris},
  year      = {1989},
  language  = {de}
}