%0 Journal Article %A Maddox, I. J. %T Kuttner's theorem for operators %J Compositio Mathematica %D 1974 %P 35-41 %V 29 %N 1 %I Noordhoff International Publishing %U http://archive.numdam.org/item/CM_1974__29_1_35_0/ %G en %F CM_1974__29_1_35_0