%0 Journal Article
%T Lagrangian Stability of a Class of Second-Order Periodic Systems
%A Shunjun Jiang
%A Junxiang Xu
%A Fubao Zhang
%J Boundary Value Problems
%D 2011
%I Springer
%R 10.1155/2011/845413
%U http://dx.doi.org/10.1155/2011/845413