%0 Journal Article %A Kôzaki, Masanori %A Sumi, Hidekichi %T On normal forms of Laplacian and its iterations in harmonic spaces %J Commentationes Mathematicae Universitatis Carolinae %D 1989 %P 795-802 %V 30 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1989__30_4_a23/ %G en %F CMUC_1989__30_4_a23