%0 Journal Article %A Jafari, F. %T On Bounded and Compact Composition Operators in Polydiscs %J Canadian journal of mathematics %D 1990 %P 869-889 %V 42 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1990-045-0/ %R 10.4153/CJM-1990-045-0 %F 10_4153_CJM_1990_045_0