@book { ErnstHadermannBildungsdenkenzwischenTraditionundNeubeginn,
    title = "Ernst Hadermann. Bildungsdenken zwischen Tradition und Neubeginn",
    author = "Dieter {Kirchhöfer} and Christa {Uhlig}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1105346"
}