%0 Journal Article %A A. L. Ageev %A T. V. Antonova %T On the localization of nonsmooth discontinuity lines of a function of two variables %J Trudy Instituta matematiki i mehaniki %D 2019 %P 9-23 %V 25 %N 3 %U http://geodesic.mathdoc.fr/item/TIMM_2019_25_3_a1/ %G ru %F TIMM_2019_25_3_a1