@book { LehrbuchderPatrologie,
    title = "Lehrbuch der Patrologie",
    author = "Hubertus {Drobner}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01379-5",
    url = "https://www.peterlang.com/document/1053581"
}