@inproceedings{christoph2010constrained, title={CONSTRAINED WILLMORE TORI IN THE 4–SPHERE}, author={Christoph Bohle}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160911224009259834850}, booktitle={Journal of Differential Geometry}, volume={86}, number={1}, pages={71-131}, year={2010}, }