%0 Journal Article
%A Lai, Hon-Fei
%T On piecewise-constant functions
%J Portugaliae mathematica
%D 1968
%P 161-168
%V 27
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1968__27_3_115071/
%G en
%F PORMA_1968__27_3_115071