@book { RckabwicklungenbeiderSchenkungsteuer,
    title = "Rückabwicklungen bei der Schenkungsteuer",
    author = "Sebastian {Engler}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101642"
}