TY - JOUR AU - S. Kh. Arutyunyan TI - Some classes of differential-geometric structures on submanifolds of the pseudo-Euclidean space $E^{n+1}_{2(n+1)}$ JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1989 SP - 3 EP - 11 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1989_10_a0/ LA - ru ID - IVM_1989_10_a0 ER -