%0 Journal Article %A N. L. Nasrullaev %T Infinitesimal bendings of surfaces in the pseudo-Euclidean space~${}^1E_3$ %J Trudy Geometricheskogo Seminara %D 1974 %P 78-84 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUTGS_1974_7_a9/ %G ru %F KUTGS_1974_7_a9