@book { FriedrichCarlJosephvonErthal17741802ErzbischofKurfrstErzkanzler,
    title = "Friedrich Carl Joseph von Erthal (1774-1802). Erzbischof – Kurfürst – Erzkanzler",
    author = "Bernd {Blisch}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099670"
}