@book { DasInterventionsverbotimBrgerkrieg,
    title = "Das Interventionsverbot im Bürgerkrieg",
    author = "Christina {Nowak}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13488",
    url = "https://www.peterlang.com/document/1056719"
}