%0 Journal Article %A A. V. Aminova %T A~Lie problem, projective groups of two-dimensional Riemann surfaces, and solitons %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1990 %P 3-10 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1990_6_a0/ %G ru %F IVM_1990_6_a0