@book { DienstrechtinInternationalenOrganisationen,
    title = "Dienstrecht in Internationalen Organisationen",
    author = "Annegret {Balzer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095140"
}