@book { DiekomplexeOrganisationSchule,
    title = "Die komplexe Organisation Schule",
    author = " {Ursula Türck-Frühauf}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1071948"
}