@book { UnterhaltfrdieVergangenheit,
    title = "Unterhalt für die Vergangenheit",
    subtitle = "Die Entwicklung des Schuldnerschutzes im Unterhaltsrecht",
    author = "Florian {Thamm}",
    year = "2003",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095130"
}