@book { OneorThree,
    title = "One or Three?",
    subtitle = "From the father of Jesus to the trinity",
    author = "Karl-Heinz {Ohlig} and Karl-Heinz {Ohlig}",
    year = "2002",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1096795"
}