%0 Journal Article %A A. Dzhuraev %T Some boundary value problems for second-order elliptic systems of %J Doklady Akademii Nauk %D 1988 %P 797-802 %V 298 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_298_4_a5/ %G ru %F DAN_1988_298_4_a5