%0 Journal Article %A V. L. Gurevich %T Two-dimensional manifolds of bounded curvature %J Doklady Akademii Nauk %D 1979 %P 22-25 %V 247 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_247_1_a3/ %G ru %F DAN_1979_247_1_a3