TY - JOUR AU - A. K. Gushchin TI - $L_p$-estimates of the nontangential maximal function for solutions a second-order elliptic equation solutions JO - Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences PY - 2013 SP - 53 EP - 69 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VSGTU_2013_1_a6/ LA - ru ID - VSGTU_2013_1_a6 ER -