TY - JOUR AU - A. K. Gushchin TI - $L_p$-estimates for the nontangential maximal function of the solution to a~second-order elliptic equation JO - Sbornik. Mathematics PY - 2016 SP - 1384 EP - 1409 VL - 207 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_2016_207_10_a2/ LA - en ID - SM_2016_207_10_a2 ER -