1. The forces and moments in the leg during level walking;Bresler;Trans. Am. Soc. Mech. Engrs.,1950
2. Space requirements of the seated operator;Dempster;Wright Patterson Air Force Base WADC-TR-55-159,1955
3. Forces and energy changes in the leg during walking;Elftman;Am. J. Physiol.,1939
4. Method for routine clinical assessment of knee-joint forces;Johnson;Med. biol. Engng,1979
5. Bioengineering analysis of force actions transmitted by the knee joint;Morrison;Biomed. Engng,1968