%0 Journal Article
%T Existence of Solutions to Nonlinear Langevin Equation Involving Two Fractional Orders with Boundary Value Conditions
%A Anping Chen
%A Yi Chen
%J Boundary Value Problems
%D 2011
%I Springer
%R 10.1155/2011/516481
%U http://dx.doi.org/10.1155/2011/516481