Mobilanguage. - Kent G. Engelhardt; Roger Edwards (HCI (2), 1987)

Robots In The Service Of Humans: Concepts And Methods. - Kent G. Engelhardt (IROS, 1988)

Robotics in health and human services. - Kent G. Engelhardt (Robotics Auton. Syst., 1989)

An overview of health and human service robotics. - Kent G. Engelhardt (Robotics Auton. Syst., 1989)