@article{braun2011exploiting2 Author = {Braun, D.J. and Howard, M. and Vijayakumar, S.}, Title = {Optimal variable stiffness control: formulation and application to explosive movement tasks}, Journal = {Autonomous Robots, Special Issues on Robotics: Science and Systems 2011}, Year = {2012}, Volume = {33}, Number = {3}, Pages = {237-253}, Note = {under review} }