@book { ProskriptionundIntrigegegenYanyuParteignger,
    title = "Proskription und Intrige gegen Yüan-yu-Parteigänger",
    author = "Helmolt {Vittinghoff}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1069496"
}