@book { DieImperialismusdebattezwischenVladimirILeninundKarlKautsky,
    title = "Die Imperialismusdebatte zwischen Vladimir I., Lenin und Karl Kautsky",
    author = "Rainer {Kraus}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1070350"
}