Upperman, G., Suzuki, A., & O’Malley, M. K. (2004). Comparison of human haptic size discrimination performance in simulated environments with varying levels of force and stiffness. Chicago, IL, United States.
O’Malley, M. K., & Goldfarb, M. (2004). The effect of virtual surface stiffness on the haptic perception of detail. IEEE/ASME/Transactions/on/Mechatronics, 9, 448-454.
Glassmire, J., O’Malley, M. K., Bluethmann, W., & Ambrose, R. O. (2004). Cooperative manipulation between humans and teleoperated agents. Chicago, IL, United States.