@inproceedings{j.1977a,
title={A fixed point theorem in symplectic geometry},
author={J. Moser},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203246438349241},
booktitle={Acta Mathematica},
volume={141},
number={1},
pages={17-34},
year={1977},
}