%0 Journal Article %A N. E. Tovmasyan %T A general boundary value problem for elliptic systems of second order with constant coefficients %J Differencialʹnye uravneniâ %D 1966 %P 3-23 %V 2 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1966_2_1_a0/ %G ru %F DE_1966_2_1_a0