@article{DE_1993_29_5_a22, author = {E. K. Utkin}, title = {On the smoothness of the parabolic potential of a simple layer}, journal = {Differencialʹnye uravneni\^a}, pages = {908--909}, publisher = {mathdoc}, volume = {29}, number = {5}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1993_29_5_a22/} }