@book { DiePersonennamenindenNovellenMaupassants,
    title = "Die Personennamen in den Novellen Maupassants",
    author = "Bettina {Kopelke}",
    year = "1990",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1077964"
}