'Body-in-the-Loop' Optimization of Assistive Robotic Devices: A Validation Study. - Jeffrey R. Koller; Deanna H. Gates; Daniel P. Ferris; C. David Remy (Robotics: Science and Systems, 2016)

Comparing neural control and mechanically intrinsic control of powered ankle exoskeletons. - Jeffrey R. Koller; C. David Remy; Daniel P. Ferris (ICORR, 2017)