@inproceedings{vladimir2007proof,
title={PROOF OF THE PROJECTIVE LICHNEROWICZ-OBATA CONJECTURE},
author={Vladimir S. Matveev},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160908194412653366670},
booktitle={Journal of Differential Geometry},
volume={75},
number={3},
pages={459-502},
year={2007},
}
Vladimir S. Matveev. PROOF OF THE PROJECTIVE LICHNEROWICZ-OBATA CONJECTURE. 2007. Vol. 75. In Journal of Differential Geometry. pp.459-502. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160908194412653366670.