@book { UnPaysauCarrefour,
    title = "Un Pays au Carrefour ",
    author = "Oto {Luthar}",
    year = "2020",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b17192",
    url = "https://www.peterlang.com/document/1068881"
}