%0 Journal Article
%A Erez Lapid
%A Stephen Rallis
%T On the nonnegativity of $L(\frac{1}{2},\pi)$ for ${\rm SO}_{2n+1}$
%J Annals of mathematics
%D 2003
%P 891-917
%V 157
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4007/annals.2003.157.891/
%R 10.4007/annals.2003.157.891
%G en
%F 10_4007_annals_2003_157_891