@book { DieEuropischeSozialchartaundderenProtokolle,
    title = "Die Europäische Sozialcharta und deren Protokolle",
    author = "Xenia {Neubeck}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093451"
}