@inproceedings{leonardo1990abundance,
title={Abundance of strange attractors},
author={Leonardo Mora, and Marcelo Viana},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203320335128486},
booktitle={Acta Mathematica},
volume={171},
number={1},
pages={1-71},
year={1990},
}