@book { BeitrgezumIslamischenRechtIII,
    title = "Beiträge zum Islamischen Recht III",
    author = "Hans-Georg {Ebert} and Thoralf {Hanstein}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1096191"
}