@inproceedings{cheol-hyun2012chern-weil,
title={Chern-Weil Maslov index and its orbifold analogue},
author={Cheol-Hyun Cho, and Hyung-Seok Shin},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191221113136126459801},
booktitle={arXiv preprint arXiv:1202.0556},
year={2012},
}