@book { LonWalras,
    title = "Léon Walras",
    author = "Arnaud {Diemer} and Jean-Pierre {Potier}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/978-3-0352-6302-2",
    url = "https://www.peterlang.com/document/1053715"
}