@book { KurzeGeschichtederGegenwart,
    title = "Kurze Geschichte der Gegenwart",
    author = "Bertrand Michael {Buchmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b19081",
    url = "https://www.peterlang.com/document/1140570"
}