%0 Journal Article
%A Miguel de Guzmán
%T A covering lemma with applications to differentiability of measures and singular integral operators
%J Studia Mathematica
%D 1970
%P 299-317
%V 34
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/sm-34-3-299-317/
%R 10.4064/sm-34-3-299-317
%G en
%F 10_4064_sm_34_3_299_317