@book{Grap1992,
  author    = {Grap, Rolf Dietmar},
  title     = {Neue Formen der Arbeitsorganisation f{\"u}r die Stahlindustrie},
  publisher = {Augustinus-Buchhandlung Kerres},
  address   = {Aachen},
  isbn      = {3-86073-088-6},
  pages     = {VI, 256, 18 S. : graph. Darst.},
  year      = {1992},
  language  = {de}
}
@book{Grap1993,
  author    = {Grap, Rolf Dietmar},
  title     = {Neue Formen der Arbeitsorganisation/1 (1993)},
  publisher = {Verl. der Augustinus-Buchh.},
  address   = {Aachen},
  isbn      = {3-86073-096-7},
  year      = {1993},
  language  = {de}
}
@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{Grap1998,
  author    = {Grap, Rolf Dietmar},
  title     = {Produktion und Beschaffung: eine praxisorientierte Einf{\"u}hung},
  publisher = {Vahlen},
  address   = {M{\"u}nchen},
  isbn      = {3-8006-2321-8},
  pages     = {XVII, 344 S. : graph. Darst.},
  year      = {1998},
  language  = {de}
}
@book{GrapHeinemann1992,
  author    = {Grap, Rolf Dietmar and Heinemann, Olaf},
  title     = {So optimieren Sie Ihr Labor-Management : effiziente Organisation im industriellen Labor ; ein Praxisleitfaden ; [Ergebnisse des Arbeitskreises "Datenermittlungsmethoden"des REFA-Fachausschusses Chemie] / von Olaf Heinemann ...},
  publisher = {Verl. T{\"U}V Rheinland},
  address   = {K{\"o}ln},
  isbn      = {3-8249-0060-2},
  pages     = {113 S. : graph Darst.},
  year      = {1992},
  language  = {de}
}