@article{mota2013lie, title={Lie-group interpolation and variational recovery for internal variables}, author={Mota, Alejandro and Sun, WaiChing and Ostien, Jakob T and Foulk Iii, James W and Long, Kevin N}, journal={Computational Mechanics}, volume={52}, number={6}, pages={1281--1299}, year={2013}, publisher={Springer} }