@inproceedings{e.1986entropie,
title={Entropie geometrique des feuilletages},
author={E. Ghys, R. Langevin, and P. Walczak},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203309828822412},
booktitle={Acta Mathematica},
volume={160},
number={1},
pages={105-142},
year={1986},
}