Childress, D.S., Kaplan, J.M., and Strysik, J.S., An Electronic Controller for a Powered Wheelchair, Proceedings of the Third Annual Conference on Systems and Devices for the Disabled, pp. 72-75, Boston, MA, 1976.

Hori, R.Y., Removed Endoprosthesis Report, Laboratory Report, Northwestern University Rehabilitation Program, March 18, 1976.

Hori, R.Y., and Mockros, L.F., Indentation Tests of Human Articular Cartilage, J. of Biomechanics, Vol. 9, pp. 259-268, 1976.

Lautenschlager, E.P., Bayne, S.C., Schoenfeld, C.M., Keller, J.C., and Meyer, P.R., Jr., Physical Properties of Acrylic Cements and Handling Techniques, Hip Society, Chapter 9, pp. 91-101, 1976.

Supan, T., The Northwestern University-Self Contained Orthotic Power, Laboratory Report. Northwestern University Rehabilitation Engineering Program, April 28, 1976.