%0 Journal Article
%A Fisher, Stephen
%T Approximation by Unimodular Functions
%J Canadian journal of mathematics
%D 1971
%P 257-269
%V 23
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-025-4/
%R 10.4153/CJM-1971-025-4
%F 10_4153_CJM_1971_025_4