@book { KnowledgeManagement,
    title = "Knowledge-Management",
    author = "Reto {Schlüter}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832416874",
    url = "https://m.diplom.de/document/217562"
}