%0 Journal Article %A B. A. Reznick %T A uniqueness criterion for fractional iteration %J Annales Polonici Mathematici %D 1974 %P 219-224 %V 30 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-30-2-219-224/ %R 10.4064/ap-30-2-219-224 %G en %F 10_4064_ap_30_2_219_224