%0 Journal Article %A S. B. Klimentov %T Bending of a piece of an ovaloid into a surface with self-intersection %J Matematičeskie zametki %D 1986 %P 98-114 %V 40 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1986_40_1_a10/ %G ru %F MZM_1986_40_1_a10