1. Observational Gait Analysis Handbook, The Pathokinesiology Department and The Physical Therapy Department, Rancho Los Amigos Medical Center, Los Amigos Research and Education Institute, Inc., Downey, USA, 1996
2. The Coordination and Regulation of Movement;Bernstein,1967
3. Biomechanics and Motor Control of Human Movement;Winter,1990
4. G.F. Harris, P.A. Smith, Human Motion Analysis, Current Applications and Future Directions. TAB-IEEE Press Book Series – Design and Applications, New York, 1996
5. Three-dimensional Analysis of Human Locomotion;Allard,1997