%0 Journal Article
%A Zajíček, Luděk
%T On the intersection of the sets of the right and left internal approximate derivatives
%J Czechoslovak Mathematical Journal
%D 1973
%P 629-634
%V 23
%N 4
%I mathdoc
%U https://geodesic-test.mathdoc.fr/articles/10.21136/CMJ.1973.101205/
%R 10.21136/CMJ.1973.101205
%G en
%F 10_21136_CMJ_1973_101205