@book { FoletFolieenancienfranais,
    title = "« Fol » et « Folie » en ancien français",
    author = "Charles {Brucker}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/b11681",
    url = "https://www.peterlang.com/document/1113374"
}