@techreport{UthmannBBMR1998PPSMeetsWorkflow,
  author = {C Uthmann and J Becker and P Brödner and I Maucher and M Rosemann},
  title = {PPS meets Workflow. Proceedings zum Workshop},
  institution = {Institut für Wirtschaftsinformatik, WWU Münster},
  series = {Arbeitsberichte des Instituts für Wirtschaftsinformatik},
  number = {64},
  volume = {64},
  editor = {J Becker and H-L Grob and S Klein and H Kuchen and U Müller-Funk and G Vossen},
  year = {1998},
  address = {Münster},
  note = {Publication status: Published}
}

@techreport{VTUS1996WorkflowBasierte,
  author = {Uthmann C v. and K Turowski and Mitarbeit von Rehfeldt M unter and M Skall},
  title = {Workflow-basierte Geschäftsprozeßregelung als Konzept für das Management industrieller Produktentwicklungsprozesse},
  institution = {Institut für Wirtschaftsinformatik, WWU Münster},
  series = {Arbeitsberichte des Instituts für Wirtschaftsinformatik},
  number = {50},
  volume = {50},
  editor = {J Becker and H-L Grob and S Klein and H Kuchen and U Müller-Funk and G Vossen},
  year = {1996},
  address = {Münster},
  note = {Publication status: Published}
}