@book { ImpulsoreChresto,
    title = "«Impulsore Chresto»",
    subtitle = "Opposition to Christianity in the Roman Empire c. 50-250 AD",
    author = "Jakob {Engberg}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103564"
}