@book { GemeinsamSchulegegenGewaltentwickeln,
    title = "Gemeinsam Schule gegen Gewalt entwickeln",
    author = "Manuela {Gantzer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107905"
}