%0 Journal Article %A O. V. Besov %T The behavior of differentiable functions on a nonsmooth surface %J Informatics and Automation %D 1972 %P 3-10 %V 117 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1972_117_a0/ %G ru %F TRSPY_1972_117_a0