%0 Journal Article %A Arkady Berenstein %A Vladimir Retakh %T A short proof of Kontsevich's cluster conjecture %J Comptes Rendus. Mathématique %D 2011 %P 119-122 %V 349 %N 3-4 %I Elsevier %R 10.1016/j.crma.2011.01.004 %G en %F CRMATH_2011__349_3-4_119_0