TY - CONF T1 - Embodying Desired Behavior in Variable Stiffness Actuators T2 - 2011 Congress of the International Federation of Automatic Control - IFAC 2011 Y1 - 2011 A1 - L. C. Visser A1 - S. Stramigioli A1 - A. Bicchi KW - Robotics JF - 2011 Congress of the International Federation of Automatic Control - IFAC 2011 CY - Milano, italy ER -