TY - JOUR AU - P. I. Lizorkin AU - N. V. Miroshin TI - Smoothness of the solution of the first boundary value problem for a second-order model degenerate elliptic differential operator JO - Differencialʹnye uravneniâ PY - 1986 SP - 1945 EP - 1951 VL - 22 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1986_22_11_a11/ LA - ru ID - DE_1986_22_11_a11 ER -