The Twente humanoid head. - Rob Reilink; Ludo C. Visser; Jan Bennik; Raffaella Carloni; Dannis Michel Brouwer; Stefano Stramigioli (ICRA, 2009)

Vision based motion control for a humanoid head. - Ludo C. Visser; Raffaella Carloni; Stefano Stramigioli (IROS, 2009)

Variable stiffness actuators: A port-based analysis and a comparison of energy efficiency. - Ludo C. Visser; Raffaella Carloni; Stefano Stramigioli (ICRA, 2010)

Modeling and design of energy efficient variable stiffness actuators. - Ludo C. Visser; Raffaella Carloni; Ramazan Unal; Stefano Stramigioli (ICRA, 2010)

Port-hamiltonian modeling for soft-finger manipulation. - Fanny Ficuciello; Raffaella Carloni; Ludo C. Visser; Stefano Stramigioli (IROS, 2010)

Mechatronic design of the Twente humanoid head. - Rob Reilink; Ludo C. Visser; Dannis Michel Brouwer; Raffaella Carloni; Stefano Stramigioli (Intell. Serv. Robotics, 2011)

Energy-Efficient Variable Stiffness Actuators. - Ludo C. Visser; Raffaella Carloni; Stefano Stramigioli (IEEE Trans. Robotics, 2011)

Variable impedance actuators: Moving the robots of tomorrow. - Bram Vanderborght; Alin Albu-Schäffer; Antonio Bicchi; Etienne Burdet; Darwin G. Caldwell; Raffaella Carloni; Manuel G. Catalano; Ganesh Gowrishankar; Manolo Garabini; Markus Grebenstein; Giorgio Grioli; Sami Haddadin; et al. (IROS, 2012)

Variable Stiffness Actuators: A Port-Based Power-Flow Analysis. - Raffaella Carloni; Ludo C. Visser; Stefano Stramigioli (IEEE Trans. Robotics, 2012)

Controller design for a bipedal walking robot using variable stiffness actuators. - J. G. Ketelaar; Ludo C. Visser; Stefano Stramigioli; Raffaella Carloni (ICRA, 2013)

Control strategy for energy-efficient bipedal walking with variable leg stiffness. - Ludo C. Visser; Stefano Stramigioli; Raffaella Carloni (ICRA, 2013)

Variable impedance actuators: A review. - Bram Vanderborght; Alin Albu-Schäffer; Antonio Bicchi; Etienne Burdet; Darwin G. Caldwell; Raffaella Carloni; Manuel G. Catalano; Oliver Eiberger; Werner Friedl; Ganesh Ganesh; Manolo Garabini; Markus Grebenstein; et al. (Robotics Auton. Syst., 2013)

Variable bipedal walking gait with variable leg stiffness. - Wesley Roozing; Ludo C. Visser; Raffaella Carloni (BioRob, 2014)

Bipedal locomotion using variable stiffness actuation. - Ludo C. Visser; Stefano Stramigioli; Raffaella Carloni (CoRR, 2017)