%0 Journal Article %A N. N. Tarkhanov %T Uniform approximation by solutions of elliptic systems %J Sbornik. Mathematics %D 1988 %P 351-377 %V 61 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1988_61_2_a5/ %G en %F SM_1988_61_2_a5