@inproceedings{jérôme2014the,
title={The convergence Newton polygon of a$p$-adic differential equation II: Continuity and finiteness on Berkovich curves},
author={Jérôme Poineau, and Andrea Pulita},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203405110900803},
booktitle={Acta Mathematica},
volume={214},
number={2},
pages={357-393},
year={2014},
}

Jérôme Poineau, and Andrea Pulita. The convergence Newton polygon of a$p$-adic differential equation II: Continuity and finiteness on Berkovich curves. 2014. Vol. 214. In Acta Mathematica. pp.357-393. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203405110900803.