C.  Fang, A. Ajoudani, Bicchi, A., and Tsagarakis, N. G., ?A real-time identification and tracking method for the musculoskeletal model of human arm?, in 2018 IEEE International Conference on Systems, Man, and Cybernetics (SMC) , 2019. 

N. G.  Tsagarakis, Negrello, F., Garabini, M., Choi, W., Baccelliere, L., Loc, V. G., Noorden, J., Catalano, M. G., Ferrati, M., Muratore, L., Kryczka, P., E. Hoffman, M., Settimi, A., Rocchi, A., Margan, A., Cordasco, S., Kanoulas, D., Cardellino, A., Natale, L., Dallali, H., Malzahn, J., Kashiri, N., Varricchio, V., Pallottino, L., Pavan, C., Lee, J., A. Ajoudani, Caldwell, D. G., and Bicchi, A., ?WALK-MAN Humanoid Platform?, in The DARPA Robotics Challenge Finals: Humanoid Robots To The Rescue, vol. 121, Springer, 2018, pp. 495?548. 

A. Ajoudani, Tsagarakis, N. G., and Bicchi, A., ?Choosing Poses for Force and Stiffness Control?, IEEE Transactions on Robotics, 2017 [Online]. Available: http://ieeexplore.ieee.org/document/7951027/

F.  Negrello, Catalano, M. G., Garabini, M., Poggiani, M., Caldwell, D. G., Tsagarakis, N. G., and Bicchi, A., ?Design and characterization of a novel high-compliance spring for robots with soft joints?, in IEEE International Conference on Advanced Intelligent Mechatronics (AIM), Munich, Germany, 3-7 July 2017, 2017 [Online]. Available: http://ieeexplore.ieee.org/document/8014029/

C.  Fang, A. Ajoudani, Bicchi, A., and Tsagarakis, N. G., ?Online Model Based Estimation of Complete Joint Stiffness of Human Arm?, in IEEE International Conference of Intelligent Robots and Systems (IROS2017), Vancouver, Canada, September 24?28, 2017, 2017. 

C.  Fang, A. Ajoudani, Bicchi, A., and Tsagarakis, N. G., ?Online Model Based Estimation of Complete Joint Stiffness of Human Arm?, IEEE Robotics and Automation Letters, vol. 3, no. 1, pp. 84 - 91, 2017 [Online]. Available: http://ieeexplore.ieee.org/document/7990237/

A. Ajoudani, Fang, C., Tsagarakis, N. G., and Bicchi, A., ?Reduced-Complexity Representation of the Human Arm Active Endpoint Stiffness for Supervisory Control of Remote Manipulation?, International Journal of Robotics Research, vol. 37, no. 1, 2017 [Online]. Available: https://journals.sagepub.com/doi/full/10.1177/0278364917744035

N. G.  Tsagarakis, Caldwell, D. G., Negrello, F., Choi, W., Baccelliere, L., Loc, V. G., Noorden, J., Muratore, L., Margan, A., Cardellino, A., Natale, L., E. Hoffman, M., Dallali, H., Kashiri, N., Malzahn, J., Lee, J., Kryczka, P., Kanoulas, D., Garabini, M., Catalano, M. G., Ferrati, M., Varricchio, V., Pallottino, L., Pavan, C., Bicchi, A., Settimi, A., Rocchi, A., and A. Ajoudani, ?WALK-MAN: A High-Performance Humanoid Platform for Realistic Environments?, Journal of Field Robotics, vol. 34, no. 4, pp. 1 - 34, 2017 [Online]. Available: http://onlinelibrary.wiley.com/doi/10.1002/rob.21702/epdf

F.  Negrello, Garabini, M., Catalano, M. G., Malzahn, J., Caldwell, D. G., Bicchi, A., and Tsagarakis, N. G., ?A Modular Compliant Actuator for Emerging High Performance and  Fall-Resilient Humanoids?, in 15th IEEE RAS Humanoids Conference (HUMANOIDS2015), 2016 [Online]. Available: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7363567

A. Ajoudani, Hocaoglu, E., Altobelli, A., Rossi, M., Battaglia, E., Tsagarakis, N. G., and Bicchi, A., ?Reflex Control of the Pisa/IIT SoftHand during Object Slippage?, in IEEE International Conference of Robotics and Automation (ICRA2016), Stockholm, Sweden, 2016, pp. 1972 - 1979 [Online]. Available: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7487344

A. Ajoudani, Godfrey, S. B., Tsagarakis, N. G., and Bicchi, A., ?Teleimpedance Control: Overview and application?, in Human and Robot Hands , vol. Springer Series on Touch and Haptic Systems, 2016, pp. 151-169. 

S.  Wolf, Grioli, G., Eiberger, O., Friedl, W., Grebenstein, M., Hoppner, H., Burdet, E., Caldwell, D. G., Carloni, R., Catalano, M. G., Lefeber, D., Stramigioli, S., Tsagarakis, N. G., Damme, V. M., Ham, V. R., Vanderborght, B., Visser, L. C., Bicchi, A., and Albu-Schaeffer, A., ?Variable Stiffness Actuators: Review on Design and Components?,  IEEE/ASME Transactions on Mechatronics , vol. 21, no. 5, pp. 2418 - 2430, 2016 [Online]. Available: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7330025

F.  Negrello, Garabini, M., Catalano, M. G., Kryczka, P., Choi, W., Caldwell, D. G., Bicchi, A., and Tsagarakis, N. G., ? WALK-MAN humanoid lower body design optimization for enhanced physical performance?, in IEEE International Conference of Robotics and Automation (ICRA2016), Stockholm, Sweden, May 16-21, 2016 , 2016, pp. 1817 - 1824 [Online]. Available: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7487327

M.  Ferrati, Settimi, A., Muratore, L., Tsagarakis, N. G., Natale, L., and Pallottino, L., ?The Walk-Man Robot Software Architecture?, Front. Robot. AI, 2016 [Online]. Available: http://bit.ly/2jAPke2

M.  Bagheri, A. Ajoudani, Lee, J., Caldwell, D. G., and Tsagarakis, N. G., ?Kinematic Analysis and Design Considerations for Optimal Base Frame Arrangement of Humanoid Shoulders?, in IEEE International Conference on Robotics and Automation (ICRA2015), Seattle, USA, 25 - 30 May, 2015, pp. 2710 - 2715. 

A. Ajoudani, Fang, C., Tsagarakis, N. G., and Bicchi, A., ?A Reduced-Complexity Description of Arm Endpoint Stiffness with Applications to Teleimpedance Control?, in IEEE International Conference of Intelligent Robots and Systems - IROS2015, Hamburg, Germany, 28 Sept - 2 Oct 2015, 2015, pp. 1017 - 1023 [Online]. Available: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7353495

A. Ajoudani, Tsagarakis, N. G., and Bicchi, A., ?On the Role of Robot Configuration in Cartesian Stiffness Control?, in IEEE International Conference on Robotics and Automation (ICRA2015), Seattle, USA, 25 - 30 May, 2015, pp. 1010 - 1016. 

N.  Karavas, A. Ajoudani, Tsagarakis, N. G., Saglia, J., Bicchi, A., and Caldwell, D., ?Tele- Impedance based Assistive Control for a Compliant Knee Exoskeleton: Stiffness Augmentation and Motion Assistance?, Robotics and Autonomous Systems, vol. 73 part A, pp. 78-90, 2015 [Online]. Available: http://www.sciencedirect.com/science/article/pii/S0921889014002127

G.  Grioli, Wolf, S., Garabini, M., Catalano, M. G., Burdet, E., Caldwell, D. G., Carloni, R., Friedl, W., Grebenstein, M., Laffranchi, M., Lefeber, D., Stramigioli, S., Tsagarakis, N. G., Damme, V. M., Vanderborght, B., Albu-Schaeffer, A., and Bicchi, A., ?Variable Stiffness Actuators: the user?s point of view?, Int. J. Robotics Research, vol. 34, no. 6, pp. 727-743, 2015 [Online]. Available: http://ijr.sagepub.com/cgi/reprint/0278364914566515v1.pdf?ijkey=anmgudvoLz7ZloP&keytype=finite

A. Ajoudani, Godfrey, S. B., Catalano, M. G., Bianchi, M., Grioli, G., Tsagarakis, N. G., and Bicchi, A., ?Exploring Teleimpedance and Tactile Feedback for Intuitive Control of the Pisa/IIT SoftHand?,  IEEE Transactions on Haptics, vol. 7, no. 2, pp. 203 - 215, 2014 [Online]. Available: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6755554

G.  Salvietti, Gioioso, G., Malvezzi, M., Prattichizzo, D., Serio, A., Farnioli, E., Gabiccini, M., Bicchi, A., Sarakoglou, I., Tsagarakis, N. G., and Caldwell, D. G., ?HANDS.DVI: A DeVice-Independent programming and control framework for robotic HANDS?, in Gearing up and accelerating cross-fertilization between academic and industrial robotics research in Europe - Technology transfer experiments from the ECHORD project, vol. 94, 2014, pp. 197-215. 

A. Ajoudani, Lee, J., Rocchi, A., Ferrati, M., E. Hoffman, M., Settimi, A., Caldwell, D. G., Bicchi, A., and Tsagarakis, N. G., ?Manipulation Framework for Compliant Humanoid COMAN: Application to a Valve Turning Task?, in IEEE-RAS International Conference on Humanoid Robots (HUMANOIDS 2014), Madrid, Spain, November 18 - 20, 2014, pp. 664 - 670 [Online]. Available: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7041434

A.  Settimi, Pavan, C., Varricchio, V., Ferrati, M., Mingo, E., Rocchi, A., Melo, K., Tsagarakis, N. G., and Bicchi, A., ?A modular approach for remote operation of humanoid robots in search and rescue scenarios ?, in Modelling & Simulation for Autonomous Systems - MESAS2014, Rome, 5-6 May 2014, 2014. 

A. Ajoudani, Tsagarakis, N. G., Lee, J., Gabiccini, M., and Bicchi, A., ?Natural Redundancy Resolution in Dual-Arm Manipulation using Con?guration Dependent Stiffness (CDS) Control?, in 2014 IEEE International Conference on Robotics and Automation, Hong Kong, May 31 2014-June 7 2014  , 2014, pp. 1480 - 1486 [Online]. Available: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6945252

A.  Serio, Riccomini, E., Tartaglia, V., Sarakoglou, I., Gabiccini, M., Tsagarakis, N. G., and Bicchi, A., ?The Patched Intrinsic Tactile Object: a Tool to Investigate Human Grasps?, in Proc. IEEE/RSJ Intl Conf. on Intelligent Robots and Systems (IROS 2014), Chicago, USA, 2014, pp. 1261 - 1268. 

J.  Lee, A. Ajoudani, E. Hoffman, M., Rocchi, A., Settimi, A., Ferrati, M., Bicchi, A., Tsagarakis, N. G., and Caldwell, D. G., ?Upper-body Impedance Control with an Intuitive Stiffness Emulation for a Door Opening Task?, in IEEE-RAS International Conference on Humanoid Robots (HUMANOIDS 2014), Madrid, Spain, November 18 - 20, 2014, pp. 713 - 719 [Online]. Available: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7041441

E.  Mingo, Traversaro, S., Rocchi, A., Ferrati, M., Settimi, A., Romano, F., Natale, L., Bicchi, A., Nori, F., and Tsagarakis, N. G., ?Yarp Based Plugins for Gazebo Simulator?, in 2014 Modelling and Simulation for Autonomous Systems Workshop (MESAS), Roma, Italy, 5 -6 May 2014, 2014. 

A. Ajoudani, Gabiccini, M., Tsagarakis, N. G., and Bicchi, A., ?Human-Like Impedance and Minimum Effort Control for Natural and Efficient Manipulation?, in IEEE International Conference on Robotics and Automation (ICRA2013), 2013, pp. 4499 - 4505. 

L.  Chen, Garabini, M., Laffranchi, M., Kashiri, N., Tsagarakis, N. G., Bicchi, A., and Caldwell, D. G., ?Optimal Control for Maximizing Velocity of the CompActTM Compliant Actuator?, in IEEE International Conference on Robotics and Automation (ICRA2013), 2013, pp. 516 - 522 [Online]. Available: 10.1109/ICRA.2013.6630623

N.  Karavas, A. Ajoudani, Tsagarakis, N. G., Saglia, J., Bicchi, A., and Caldwell, D. G., ?Tele-Impedance based Stiffness and Motion Augmentation for a Knee Exoskeleton Device?, in IEEE International Conference on Robotics and Automation (ICRA2013), 2013, pp. 2194 - 2200 [Online]. Available: 10.1109/ICRA.2013.6630872

A. Ajoudani, Godfrey, S. B., Catalano, M. G., Grioli, G., Tsagarakis, N. G., and Bicchi, A., ?Teleimpedance Control of a Synergy-Driven Anthropomorphic Hand?, in IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2013, Tokyo, Japan, 2013, pp. 1985 - 1991. 

B.  Vanderborght, Albu-Schaeffer, A., Bicchi, A., Burdet, E., Caldwell, D. G., Carloni, R., Catalano, M. G., Eiberger, O., Friedl, W., Ganesh, G., Garabini, M., Grebenstein, M., Grioli, G., Haddadin, S., Hoppner, H., Jafari, A., Laffranchi, M., Lefeber, D., Petit, F., Stramigioli, S., Tsagarakis, N. G., Damme, V. M., Ham, V. R., Visser, L. C., and Wolf, S., ?Variable Impedance Actuators: a Review?, Robotics and Autonomous Systems, vol. 61, no. 12, pp. 1601?1614, 2013 [Online]. Available: http://www.sciencedirect.com/science/article/pii/S0921889013001188

A. Ajoudani, Gabiccini, M., Tsagarakis, N. G., Albu-Schaeffer, A., and Bicchi, A., ?Tele-Impedance: Exploring the Role of Common-Mode and Configuration-Dependant Stiffness?, in IEEE-RAS International Conference on Humanoid Robots, Osaka, Japan, 2012, pp. 363-369. 

A. Ajoudani, Tsagarakis, N. G., and Bicchi, A., ?Tele-impedance: Teleoperation with Impedance Regulation Using a Body-Machine Interface?, International Journal of Robotics Research, vol.  31 , no. 13, pp. 1643 - 1656, 2012. 

A. Ajoudani, Tsagarakis, N. G., and Bicchi, A., ?Tele-Impedance: Towards Transferring Human Impedance Regulation Skills to Robots?, in International Conference of Robotics and Automation - ICRA 2012, Saint Paul, MN, USA, 2012, pp. 382 - 388 . 

M. G.  Catalano, Grioli, G., Garabini, M., Belo, F. A. W., Di Basco, A., Tsagarakis, N. G., and Bicchi, A., ?A Variable Damping module for Variable Impedance Actuation?, in International Conference of Robotics and Automation - ICRA 2012, Saint Paul, MN, USA, 2012, pp. 2666 - 2672. 

B.  Vanderborght, Albu-Schaeffer, A., Bicchi, A., Burdet, E., Caldwell, D. G., Carloni, R., Catalano, M. G., Ganesh, G., Garabini, M., Grioli, G., Haddadin, S., Jafari, A., Laffranchi, M., Lefeber, D., Petit, F., Stramigioli, S., Tsagarakis, N. G., Damme, V. M., Ham, V. R., Visser, L. C., and Wolf, S., ?Variable Impedance Actuators: Moving the Robots of Tomorrow?, International Conference of Intelligent Robots and Systems - IROS 2012- Best Jubilee Video Award. 2012. 

A.  Serio, Grioli, G., Sardellitti, I., Tsagarakis, N. G., and Bicchi, A., ?A decoupled Impedance observer for a Variable Stiffness Robot?, in 2011 IEEE International Conference on Robotics and Automation, Shangai, China, 2011, pp. 5548 - 5553. 

A. Ajoudani, Tsagarakis, N. G., and Bicchi, A., ?Tele-Impedance: Preliminary Results on Measuring and Replicating Human Arm Impedance in Tele Operated Robots?, in IEEE International Conference on Robotics and Biomimetics - ROBIO 2011, Phuket, Thailand, 2011, pp. 216 - 223. 

M. G.  Catalano, Grioli, G., Garabini, M., Bonomo, F., Mancini, M., Tsagarakis, N. G., and Bicchi, A., ?VSA - CubeBot. A modular variable stiffness platform for multi degrees of freedom systems?, in 2011 IEEE International Conference on Robotics and Automation, Shangai, China, 2011, pp. 5090 - 5095.