@conference {GBSPB12,
	title = {Optimality Principles in Stiffness Control: The VSA Kick},
	booktitle = {International Conference of Robotics and Automation - ICRA 2012},
	year = {2012},
	month = {May 14 - 18},
	pages = {3341 - 3346 },
	address = {Saint Paul, MN, USA},
	keywords = {Robotics},
	author = {M. Garabini and A. Passaglia and F. A. W. Belo and P Salaris and A. Bicchi}
}
@conference {GPBSB11,
	title = {Optimality Principles in Variable Stiffness Control: the VSA Hammer},
	booktitle = {2011 IEEE/RSJ International Conference on Intelligent RObots and Systems},
	year = {2011},
	month = {September 25 - 3},
	pages = {3770 - 3775},
	address = {S. Francisco, USA},
	keywords = {Robotics},
	author = {M. Garabini and A. Passaglia and F. A. W. Belo and P Salaris and A. Bicchi}
}
@conference {GCGSSBMBP11,
	title = {Variable stiffness actuators: muscles for the next generation of robots},
	booktitle = {Automatica.it 2011},
	year = {2011},
	note = {<p>poster presentation</p>
},
	month = {September, 7 - 9},
	address = {Pisa, Italy},
	keywords = {Robotics},
	author = {G. Grioli and M. G. Catalano and M. Garabini and F. Bonomo and A. Serio and P Salaris and F. A. W. Belo and M. Mancini and A. Bicchi and A. Passaglia}
}
