TY - JOUR AU - S. Z. Djamalov TI - On the smoothness of the solution of a nonlocal boundary value problem for the multidimensional second-order equation of the mixed type of the second kind in Sobolev space JO - Žurnal Srednevolžskogo matematičeskogo obŝestva PY - 2019 SP - 24 EP - 33 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SVMO_2019_21_1_a1/ LA - ru ID - SVMO_2019_21_1_a1 ER -