@book { DieSchulederJanitscharen,
    title = "Die Schule der Janitscharen",
    author = "Alojzy {Twardecki}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02103-5",
    url = "https://www.peterlang.com/document/1047401"
}