@book { DieReligiseStiftungimIslamwaqfnachhanafitischerLehre,
    title = "Die Religiöse Stiftung im Islam (waqf) nach hanafitischer Lehre",
    author = "Hans-Georg {Ebert}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13444",
    url = "https://www.peterlang.com/document/1055933"
}