@book { DermonenergetischmonotheletischeStreit,
    title = "Der monenergetisch-monotheletische Streit",
    author = "Friedhelm {Winkelmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091678"
}