@book { DerMieterschutzderNachkriegszeit,
    title = "Der Mieterschutz der Nachkriegszeit",
    author = "Hans-Joachim {Lutz}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1087132"
}