@book { StdtebaurechtimRechtsvergleich,
    title = "Städtebaurecht im Rechtsvergleich",
    author = "Georgios {Ziamos}",
    year = "1998",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1086580"
}