%0 Journal Article %A L. S. Sergienko %T On the Dirichlet problem for first-order elliptic systems %J Differencialʹnye uravneniâ %D 1981 %P 1700-1701 %V 17 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_9_a23/ %G ru %F DE_1981_17_9_a23