@inproceedings{georges2009rotation,
title={ROTATION OF TRAJECTORIES OF LIPSCHITZ VECTOR FIELDS},
author={Georges Comte, and Yosef Yomdin},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160911180902673806765},
booktitle={Journal of Differential Geometry},
volume={81},
number={3},
pages={601-630},
year={2009},
}

Georges Comte, and Yosef Yomdin. ROTATION OF TRAJECTORIES OF LIPSCHITZ VECTOR FIELDS. 2009. Vol. 81. In Journal of Differential Geometry. pp.601-630. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160911180902673806765.