%0 Journal Article
%A Xue-gang Chen
%A Wai Chee Shiu
%T A new upper bound on the global defensive alliance number in trees
%J The electronic journal of combinatorics
%D 2011
%V 18
%N 1
%U http://geodesic.mathdoc.fr/articles/10.37236/689/
%R 10.37236/689
%F 10_37236_689