%0 Journal Article %A Ewa Ligocka %T On duality and interpolation for spaces of polyharmonic functions %J Studia Mathematica %D 1988 %P 139-163 %V 88 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-88-2-139-163/ %R 10.4064/sm-88-2-139-163 %G en %F 10_4064_sm_88_2_139_163