%0 Journal Article %A Liu, Hong-Yan %A He, Ji-Huan %A Li, Zhi-Min %T Variational principle for a three-point boundary value problem %J Journal of nonlinear sciences and its applications %D 2016 %P 5169-5174 %V 9 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.22436/jnsa.009.08.02/ %R 10.22436/jnsa.009.08.02 %G en %F JNSA_2016_9_8_a1