@inproceedings{fan1997eigenvalue,
title={Eigenvalue inequalities for graphs and convex subgraphs},
author={Fan RK Chung, and Shing-Tung Yau},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224204014450848116},
booktitle={Communications in Analysis and Geometry},
volume={5},
number={4},
pages={575-623},
year={1997},
}

Fan RK Chung, and Shing-Tung Yau. Eigenvalue inequalities for graphs and convex subgraphs. 1997. Vol. 5. In Communications in Analysis and Geometry. pp.575-623. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224204014450848116.