%0 Journal Article
%T Three Solutions for Forced Duffing-Type Equations with Damping Term
%A Li Yongkun
%A Zhang Tianwei
%J Boundary Value Problems
%D 2011
%I Springer
%X Using the variational principle of Ricceri and a local mountain pass lemma, we study the existence of three distinct solutions for the following resonant Duffing-type equations with damping and perturbed term , a.e. , and without perturbed term , a.e. , .
%U http://www.boundaryvalueproblems.com/content/2011/736093