@conference { wcc15, author = { Langevin, Philippe }, title = { Proof of a Conjectured Three-Valued Family of Weil Sums of Binomials }, month = { Avril }, organization = { Worshop in Crypography and Coding Theory }, address = { Paris, France }, year = {2015}, rang = {A}, url = {http://langevin.univ-tln.fr/recherche/drafts/wcc-slides.pdf}, }