%0 Journal Article
%A I. Ya. Guberman
%T The differentiability of continuous functions which satisfy certain functional relations
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1969
%P 37-43
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1969_11_a3/
%G ru
%F IVM_1969_11_a3