@book { VonformalerHierarchiezueffektiverKooperation,
    title = "Von formaler Hierarchie zu effektiver Kooperation?",
    author = "Klaus {Simonis}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100062"
}