@book { PiusXIIunddieDeportationderJudenRoms,
    title = "Pius XII. und die Deportation der Juden Roms",
    author = "Klaus {Kühlwein}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b15785",
    url = "https://www.peterlang.com/document/1111041"
}