%0 Journal Article %A F. G. Avkhadiev %T Rellich inequalities for polyharmonic operators in plane domains %J Sbornik. Mathematics %D 2018 %P 292-319 %V 209 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2018_209_3_a1/ %G en %F SM_2018_209_3_a1