@book { BriefeausLagernundGefngnissen19391945,
    title = "Briefe aus Lagern und Gefängnissen 1939–1945",
    author = "Lucyna {Sadzikowska}",
    year = "2024",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b21746",
    url = "https://www.peterlang.com/document/1415870"
}