%0 Journal Article %A L. B. Grigoryeva %A V. D. Zakharov %T Recurrent curvature spaces in the general relativity theory %J Doklady Akademii Nauk %D 1972 %P 814-816 %V 207 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1972_207_4_a12/ %G ru %F DAN_1972_207_4_a12