%0 Journal Article %A A. L. Ageev %A T. V. Antonova %T Approximation of the Normal to the Discontinuity Lines of a Noisy Function %J Trudy Instituta matematiki i mehaniki %D 2022 %P 7-23 %V 28 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_2022_28_2_a0/ %G ru %F TIMM_2022_28_2_a0