@book { ZwangsarbeitinderProvinzBrandenburg19391945,
    title = "Zwangsarbeit in der Provinz Brandenburg 1939-1945",
    author = " {Brandenburgisches Landeshauptarchiv}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1086569"
}