@inproceedings{linus2007a,
title={A DIFFEOMORPHISM CLASSIFICATION OF MANIFOLDS WHICH ARE LIKE PROJECTIVE PLANES},
author={Linus Kramer, and Stephan Stolz},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160909090505429138694},
booktitle={Journal of Differential Geometry},
volume={77},
number={2},
pages={177-188},
year={2007},
}
Linus Kramer, and Stephan Stolz. A DIFFEOMORPHISM CLASSIFICATION OF MANIFOLDS WHICH ARE LIKE PROJECTIVE PLANES. 2007. Vol. 77. In Journal of Differential Geometry. pp.177-188. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160909090505429138694.