1. Kirtley C. Sensitivity of the modified helen hayes model to marker placement errors. In: Proceedings of the VII International Symposium on the 3D Analysis of Human Movement, Newcastle, UK; 2002.
2. A gait analysis collection and reduction technique;Davis;Hum. Mov. Sci,1991
3. Measurement of lower extremity kinematics during level walking;Kadaba;J. Orthop. Res,1990
4. Williams JR, Leardini A, Catani F. The study of upper limb kinematics using a “technical array” marker set, “anatomical calibration” and “technical and anatomical axes”. In: Proceedings of the Meeting of the British Orthopaedic Research Society, Oswestry, UK; 1996.
5. Position and orientation in space of bones during movement: anatomical frame definition and determination;Cappozzo;Clin. Biomech,1995