@inproceedings{adina2011biharmonic,
title={Biharmonic PNMC submanifolds in spheres},
author={Adina Balmuş, Stefano Montaldo, and Cezar Oniciuc},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203635555563044},
booktitle={Arkiv for Matematik},
volume={51},
number={2},
pages={197-221},
year={2011},
}
Adina Balmuş, Stefano Montaldo, and Cezar Oniciuc. Biharmonic PNMC submanifolds in spheres. 2011. Vol. 51. In Arkiv for Matematik. pp.197-221. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203635555563044.