%0 Journal Article %A A. V. Ivanov %T The first boundary value problem for $(A,\vec b)$-elliptic equations %J Zapiski Nauchnykh Seminarov POMI %D 1979 %P 45-88 %V 84 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1979_84_a6/ %G ru %F ZNSL_1979_84_a6