%0 Journal Article %A A. V. Bitsadze %T Some properties of polyharmonic functions %J Differencialʹnye uravneniâ %D 1988 %P 825-831 %V 24 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1988_24_5_a10/ %G ru %F DE_1988_24_5_a10