%0 Journal Article
%A Zajíček, Luděk
%T On the symmetry of Dini derivates of arbitrary functions
%J Commentationes Mathematicae Universitatis Carolinae
%D 1981
%P 195-209
%V 22
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1981__22_1_a15/
%G en
%F CMUC_1981__22_1_a15