@inproceedings{bui2009degree,
title={Degree theory for generalized variational inequalities and applications},
author={Bui Trong Kien, M-M Wong, Ngai-Ching Wong, and Jen-Chih Yao},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020205620598199183},
booktitle={European Journal of Operational Research},
volume={192},
number={3},
pages={730-736},
year={2009},
}
Bui Trong Kien, M-M Wong, Ngai-Ching Wong, and Jen-Chih Yao. Degree theory for generalized variational inequalities and applications. 2009. Vol. 192. In European Journal of Operational Research. pp.730-736. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020205620598199183.