%0 Journal Article %A R. F. Galeeva %A V. V. Pelipenko %A D. D. Sokolov %T Infinitely small deformations of surfaces in pseudo-Euclidean space %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1982 %P 172-173 %V 37 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1982_37_5_a12/ %G en %F RM_1982_37_5_a12