%0 Journal Article %A O. M. Omelyan %T On conditions of the coincidence of curvatures of the first and second types on distribution of planes %J Fundamentalʹnaâ i prikladnaâ matematika %D 2010 %P 61-66 %V 16 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2010_16_2_a6/ %G ru %F FPM_2010_16_2_a6