@book { Microconomie,
    title = "Microéconomie",
    author = "Jean {Vercherand}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/978-2-8076-0004-1",
    url = "https://www.peterlang.com/document/1113682"
}