Integral solution of a class of nonlinear integral equations. - Jin Liang; Sheng-Hua Yan; Ravi P. Agarwal; Tingwen Huang (Appl. Math. Comput., 2013)

Multiple periodic solutions for second-order discrete Hamiltonian systems. - Sheng-Hua Yan; Xing-Ping Wu; Chun-Lei Tang (Appl. Math. Comput., 2014)