@article{Xu:2015:NMD,
 author = {Xu, Hongyi and Sin, Funshing and Zhu, Yufeng and Barbi\v{c}, Jernej},
 title = {Nonlinear Material Design Using Principal Stretches},
 journal = {ACM Transactions on Graphics},
 volume = {34},
 number = {4},
 year = {2015},
 pages = {75:1--75:11},
 numpages = {11},
}