%0 Conference Proceedings %F IROS11_VSAHammer %A Garabini, M. %A Passaglia, A. %A Belo, F. %A Salaris, P. %A Bicchi, A. %T Optimality principles in variable stiffness control: The VSA hammer %B IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) %P 3770-3775 %U http://dx.doi.org/10.1109/IROS.2011.6094870 %8 September %D 2011