@book { PolitischeReformpdagogik,
    title = "Politische Reformpädagogik",
    author = "Jürgen {Oelkers} and Tobias {Rülcker}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1087580"
}