http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
At head of title: Willy [pseud. of H. Gauthier-Villars]
By Colette, although published under the pseudonym of her former husband, H. Gauthier-Villars. cf. "La Fiche bibliographique francaise" 372, 7. annee, number 15.