%0 Journal Article %A Cipolatti, Rolci %T On the instability of ground states for a Davey-Stewartson system %J Annales de l'I.H.P. Physique théorique %D 1993 %P 85-104 %V 58 %N 1 %I Gauthier-Villars %U http://www.numdam.org/item/AIHPA_1993__58_1_85_0/ %G en %F AIHPA_1993__58_1_85_0