@book { IslamischeGrenzenundGrenzbergnge,
    title = "Islamische Grenzen und Grenzübergänge",
    author = "Natalie {Reinert} and Johannes {Thomann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1104086"
}