%0 Journal Article %A A. N. Zubkov %A V. T. Fomenko %T Surfaces in Euclidean space with planar normal connectivity and zero normal torsion %J Matematičeskie zametki %D 1993 %P 3-16 %V 54 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1993_54_1_a0/ %G ru %F MZM_1993_54_1_a0