%0 Journal Article %A V. I. Polovinkin %T The polyharmonic equation in unbounded domains %J Doklady Akademii Nauk %D 1971 %P 277-279 %V 201 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_201_2_a4/ %G ru %F DAN_1971_201_2_a4