@book { SystemischesVerwaltungsmanagement,
    title = "Systemisches Verwaltungsmanagement",
    author = "Rüdiger {Nolte} and Annette {Wöhner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108263"
}