%0 Journal Article %A S. Kh. Arutyunyan %T Some classes of submanifolds of the pseudo-Euclidean space $E^{n+1}_{2(n+1)}$ %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1989 %P 17-21 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1989_4_a2/ %G ru %F IVM_1989_4_a2