@book { DerentgeltlicheErbvertragimZivilundSteuerrecht,
    title = "Der entgeltliche Erbvertrag im Zivil- und Steuerrecht",
    author = "Annette {Poser}",
    year = "2000",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1090035"
}