%0 Journal Article %A Kammerer-Colin de Verdière, Mathilde %T Stable products of spheres in the non-linear coupling of oscillators or quasi-periodic motions %J Comptes Rendus. Mathématique %D 2004 %P 625-629 %V 339 %N 9 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2004.09.017/ %R 10.1016/j.crma.2004.09.017 %G en %F CRMATH_2004__339_9_625_0