@book { WiderrufvonEinwilligungenbeimRechtameigenenBild,
    title = "Widerruf von Einwilligungen beim Recht am eigenen Bild",
    author = "Meike {Kirschner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b19202",
    url = "https://www.peterlang.com/document/1157334"
}