@book { DatenschutzfrUnternehmenimB2B,
    title = "«Datenschutz» für Unternehmen im B2B?",
    author = "Heiko {Drebes}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108418"
}