@book { DasmaterielleAbweichungsrechtderLnder,
    title = "Das materielle Abweichungsrecht der Länder",
    author = "Caroline {Schulze Harling}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108204"
}