%0 Journal Article %A M. I. Vishik %A G. I. Èskin %T Normally solvable problems for elliptic systems of equations in convolutions %J Sbornik. Mathematics %D 1967 %P 303-332 %V 3 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1967_3_3_a0/ %G en %F SM_1967_3_3_a0