TY - JOUR AU - E. K. Utkin TI - On the smoothness of the parabolic potential of a simple layer JO - Differencialʹnye uravneniâ PY - 1993 SP - 908 EP - 909 VL - 29 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1993_29_5_a22/ LA - ru ID - DE_1993_29_5_a22 ER -