@book { AugustinusvonHippo,
    title = "Augustinus von Hippo",
    author = "Hubertus {Drobner}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01533-1",
    url = "https://www.peterlang.com/document/1046763"
}