%0 Journal Article
%A N. Costa Pereira
%T Elementary estimates for the Chebyshev function 
%J Acta Arithmetica
%D 1989
%P 307-337
%V 52
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/aa-52-4-307-337/
%R 10.4064/aa-52-4-307-337
%G en
%F 10_4064_aa_52_4_307_337