@inproceedings{jinxin2017existence,
title={Existence of noncontractible periodic orbits of Hamiltonian system separating two Lagrangian tori on $T^*\mathbb T^n$ with application to non convex Hamiltonian systems},
author={Jinxin Xue},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20190707201720891670403},
booktitle={Journal of Symplectic Geometry},
volume={15},
number={3},
pages={905-936},
year={2017},
}
Jinxin Xue. Existence of noncontractible periodic orbits of Hamiltonian system separating two Lagrangian tori on $T^*\mathbb T^n$ with application to non convex Hamiltonian systems. 2017. Vol. 15. In Journal of Symplectic Geometry. pp.905-936. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20190707201720891670403.