@inproceedings{charles1999stability,
title={Stability of embeddings for pseudoconcave surfaces and their boundaries},
author={Charles L. Epstein, and Gennadi M. Henkin},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203336764025601},
booktitle={Acta Mathematica},
volume={185},
number={2},
pages={161-237},
year={1999},
}
Charles L. Epstein, and Gennadi M. Henkin. Stability of embeddings for pseudoconcave surfaces and their boundaries. 1999. Vol. 185. In Acta Mathematica. pp.161-237. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203336764025601.