%0 Journal Article %T 15th International Conference on Nonlinear Evolution Equations and Dynamical Systems %J Teoretičeskaâ i matematičeskaâ fizika %D 2002 %P 339-340 %V 133 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2002_133_3_a0/ %G ru %F TMF_2002_133_3_a0