@book { InDefenceofChristianity,
    title = "In Defence of Christianity",
    subtitle = "Early Christian Apologists",
    author = "Jakob {Engberg} and Anders-Christian {Jacobsen} and Jörg {Ulrich}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04643-4",
    url = "https://www.peterlang.com/document/1046064"
}