@inproceedings{john2006rationally, title={Rationally convex sets on the unit sphere in ℂ^{2}}, author={John Wermer}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203621427114928}, booktitle={Arkiv for Matematik}, volume={46}, number={1}, pages={183-196}, year={2006}, }