@book { DerErsteWeltkrieg,
    title = "Der Erste Weltkrieg",
    author = "Monika {Kucner} and Elżbieta Katarzyna {Dzikowska} and Agnieszka {Godzisz}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-05588-7",
    url = "https://www.peterlang.com/document/1049177"
}