@book { FritzJde19061923PdagogikimUmbruchzuBeginndes20Jahrhunderts,
    title = "Fritz Jöde 1906-1923 – Pädagogik im Umbruch zu Beginn des 20. Jahrhunderts",
    author = "Matthias {Kruse}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b11201",
    url = "https://www.peterlang.com/document/1061454"
}