@book { EvolutioninRomanceVerbalSystems,
    title = "Evolution in Romance Verbal Systems",
    author = "Emmanuelle {Labeau} and Jacques {Bres}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/978-3-0352-0233-5",
    url = "https://www.peterlang.com/document/1053052"
}