@inproceedings{sandra1997on,
title={On surfaces in$P$^{6}with no trisecant lines},
author={Sandra Di Rocco, and Kristian Ranestad},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203559318878750},
booktitle={Arkiv for Matematik},
volume={38},
number={2},
pages={231-261},
year={1997},
}
Sandra Di Rocco, and Kristian Ranestad. On surfaces in$P$^{6}with no trisecant lines. 1997. Vol. 38. In Arkiv for Matematik. pp.231-261. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203559318878750.