%0 Journal Article
%A A. K. Gushchin
%T The Luzin area integral and the nontangential maximal function for solutions to a second-order elliptic equation
%J Sbornik. Mathematics
%D 2018
%P 823-839
%V 209
%N 6
%U http://geodesic.mathdoc.fr/item/SM_2018_209_6_a2/
%G en
%F SM_2018_209_6_a2