@book { Nonanteouquatrevingtdix,
    title = "Nonante ou quatre-vingt-dix ?",
    subtitle = "Aux origines de la numération vigésimale en Eurasie dans la grande profondeur de l’histoire des langues",
    author = "Christian {Perrein}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/b14829",
    url = "https://www.peterlang.com/document/1113517"
}