An Ankle-foot Emulation System for the Study of Human Walking Biomechanics. - Samuel K. Au; Peter Dilworth; Hugh M. Herr (ICRA, 2006)

Powered ankle-foot prosthesis to assist level-ground and stair-descent gaits. - Samuel K. Au; Max Berniker; Hugh M. Herr (Neural Networks, 2008)

Powered ankle-foot prosthesis. - Samuel K. Au; Hugh M. Herr (IEEE Robotics Autom. Mag., 2008)

Powered Ankle–Foot Prosthesis Improves Walking Metabolic Economy. - Samuel K. Au; Jeff Weber; Hugh M. Herr (IEEE Trans. Robotics, 2009)