%0 Journal Article %A M. A. Pak %T On the decrease of solutions of linear elliptic equations with constant coefficients %J Sbornik. Mathematics %D 1969 %P 347-351 %V 7 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1969_7_3_a3/ %G en %F SM_1969_7_3_a3