@book { IchwillIsmaelsegnen, title = "«Ich will Ismael segnen»", subtitle = "Gemeinsame Wurzeln in Christentum und Islam", author = "Udo {Worschech}", year = "2011", publisher = "Peter Lang Verlag", address = "Berlin, Germany", url = "https://www.peterlang.com/document/1107666" }