@inproceedings{bui2008on,
title={On the degree theory for general mappings of monotone type},
author={Bui Trong Kien, Mu-Ming Wong, and Ngai-Ching Wong},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020205304659866172},
booktitle={Journal of Mathematical Analysis and Applications},
volume={340},
number={1},
pages={707-720},
year={2008},
}
Bui Trong Kien, Mu-Ming Wong, and Ngai-Ching Wong. On the degree theory for general mappings of monotone type. 2008. Vol. 340. In Journal of Mathematical Analysis and Applications. pp.707-720. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020205304659866172.