@book { WissensmanagementSysteme,
    title = "Wissensmanagement-Systeme",
    subtitle = "Architekturen und Konzepte",
    author = "Henning {Reichenbacher}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832460945",
    url = "https://m.diplom.de/document/221559"
}