@book { KonzeptionundUmsetzungdesWorkflowManagements,
    title = "Konzeption und Umsetzung des Workflow-Managements",
    author = "Marco {Bollow}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832419509",
    url = "https://m.diplom.de/document/217794"
}