1. Exploratory investigation of the man-amplifier concept;Clark;US Air Force AMRL-TDR-62-89, AD-390070,1962
2. Dependence of human arm movements in limb mechanical properties;Cooke;Brain Research,1979
3. The organization of simple, skilled movements;Cooke,1980
4. GE Company, Exoskeleton prototype project, final report on phase I, Report S-67-1011, Schenectady, NY, 66.
5. Hardiman I prototype project, special interim study;GE Company;Report S-68-1060,1968