Fuzzy PD+I learning control for a pneumatic muscle. - S. W. Chan; John H. Lilly; Daniel W. Repperger; James E. Berlin (FUZZ-IEEE, 2003)

Human-machine haptic interface design using stochastic resonance methods. - Daniel W. Repperger; Chandler A. Phillips; James E. Berlin; Amy T. Neidhard-Doll; Michael W. Haas (IEEE Trans. Syst. Man Cybern. Part A, 2005)