@book { InternationalerKulturgterschutzinderSchweiz,
    title = "Internationaler Kulturgüterschutz in der Schweiz",
    author = "Felix H. {Siegfried}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101606"
}