@book { EinheitdesGeistesundGotteserkenntnis,
    title = "Einheit des Geistes und Gotteserkenntnis",
    author = "Martin Augustinus {Tillmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095094"
}