@book { IslamischpolitischeDenker,
    title = "Islamisch-politische Denker",
    author = "Farid {Hafez}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04343-3",
    url = "https://www.peterlang.com/document/1047708"
}