%0 Journal Article %A Julian Gevirtz %T On the difference quotients of an analytic function %J Annales Fennici Mathematici %D 1987 %P 237-259 %V 12 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1987.1210/ %R 10.5186/aasfm.1987.1210 %G en %F AFM_1987_12_2_a7