@book { SchulischeGewaltprvention,
    title = "Schulische Gewaltprävention",
    author = "Jutta {Wawretschek-Wedemann}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03741-8",
    url = "https://www.peterlang.com/document/1047611"
}