@inproceedings{jacques1976divers,
title={Divers types de séparation pour plusieurs ensembles convexes},
author={Jacques Bair},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203500956835270},
booktitle={Arkiv for Matematik},
volume={15},
number={1},
pages={211-214},
year={1976},
}