TY - JOUR AU - A. K. Gushchin TI - On the Existence of $L_2$ Boundary Values of Solutions to an Elliptic Equation JO - Informatics and Automation PY - 2019 SP - 56 EP - 74 VL - 306 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2019_306_a5/ LA - ru ID - TRSPY_2019_306_a5 ER -