%0 Journal Article %A Gross, Fred %T On the Periodicity of Compositions of Entire Functions %J Canadian journal of mathematics %D 1966 %P 724-730 %V 18 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-072-7/ %R 10.4153/CJM-1966-072-7 %F 10_4153_CJM_1966_072_7