@book { TibetvomImperiumzurchinesischenKolonie,
    title = "Tibet – vom Imperium zur chinesischen Kolonie",
    author = "Marcus {Hölzl}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1105593"
}