%0 Journal Article %A Powers, Victoria %A Reznick, Bruce %A Scheiderer, Claus %A Sottile, Frank %T A new approach to Hilbert's theorem on ternary quartics %J Comptes Rendus. Mathématique %D 2004 %P 617-620 %V 339 %N 9 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2004.09.014/ %R 10.1016/j.crma.2004.09.014 %G en %F CRMATH_2004__339_9_617_0