@inproceedings{bernhard2018convergence,
title={Convergence and divergence of formal CR mappings},
author={Bernhard Lamel, and Nordine Mir},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191126170445930900534},
booktitle={Acta Mathematica},
volume={220},
number={2},
pages={367 – 406},
year={2018},
}

Bernhard Lamel, and Nordine Mir. Convergence and divergence of formal CR mappings. 2018. Vol. 220. In Acta Mathematica. pp.367 – 406. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191126170445930900534.