%0 Journal Article
%A R. Shen
%T A new characterization of

 $PSL_2(7)$
%J Novi Sad Journal of Mathematics
%D 2009
%P 97-101
%V 39
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NSJOM_2009_39_2a_10/
%F NSJOM_2009_39_2a_10