%0 Journal Article
%A S. Czerwik
%T On the differentiability of solutions of a functional equation with respect to a parameter
%J Annales Polonici Mathematici
%D 1970
%P 209-217
%V 24
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap-24-2-209-217/
%R 10.4064/ap-24-2-209-217
%G en
%F 10_4064_ap_24_2_209_217