%0 Journal Article %A M. F. Cherepova %T On estimates for second-order spatial derivatives for a parabolic potential of a simple layer %J Differencialʹnye uravneniâ %D 1996 %P 545-549 %V 32 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1996_32_4_a14/ %G ru %F DE_1996_32_4_a14