TY - JOUR AU - V. R. Kaigorodov TI - The curvature of $s$-recurrent and quasisymmetric Riemannian manifolds JO - Doklady Akademii Nauk PY - 1973 SP - 796 EP - 799 VL - 212 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1973_212_4_a3/ LA - ru ID - DAN_1973_212_4_a3 ER -