%0 Journal Article %A Ewa Ligocka %T Estimates in Sobolev norms $∥ ·∥^{s}_{p}$ for harmonic and holomorphic functions and interpolation between Sobolev and Hölder spaces of harmonic functions %J Studia Mathematica %D 1987 %P 255-271 %V 86 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4064/sm-86-3-255-271/ %R 10.4064/sm-86-3-255-271 %G en %F 10_4064_sm_86_3_255_271