%0 Journal Article %A Stroethoff, Karel %T Essentially Commuting Toeplitz Operators With Harmonic Symbols %J Canadian journal of mathematics %D 1993 %P 1080-1093 %V 45 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1993-059-2/ %R 10.4153/CJM-1993-059-2 %F 10_4153_CJM_1993_059_2