@book { DerpersnlicheAnwendungsbereichvertraglicherSchutzvorschriften,
    title = "Der persönliche Anwendungsbereich vertraglicher Schutzvorschriften",
    author = "Ulrike {Neumann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091764"
}