@inproceedings{robert1992spectral,
title={Spectral geometry in dimension 3},
author={Robert Brooks, Peter Perry, and Peter Petersen V},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203323608764508},
booktitle={Acta Mathematica},
volume={173},
number={2},
pages={283-305},
year={1992},
}
Robert Brooks, Peter Perry, and Peter Petersen V. Spectral geometry in dimension 3. 1992. Vol. 173. In Acta Mathematica. pp.283-305. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203323608764508.