%0 Journal Article %A V. I. Polovinkin %T Exterior Dirichlet and Neumann problems for the polyharmonic equation %J Differencialʹnye uravneniâ %D 1971 %P 64-72 %V 7 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1971_7_1_a7/ %G ru %F DE_1971_7_1_a7