%0 Journal Article %A A. Smajdor %T Note on the existence of iteration groups %J Fundamenta Mathematicae %D 1975 %P 213-218 %V 87 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-87-3-213-218/ %R 10.4064/fm-87-3-213-218 %G en %F 10_4064_fm_87_3_213_218