@book { Etudesovidiennes,
    title = "Etudes ovidiennes",
    subtitle = "Introduction aux Fastes d'Ovide",
    author = " {Prof. Henri Le Bonniec}",
    year = "1989",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1076917"
}