1. Abrahams, M. (1967) Mechanical behaviour of tendon in vitro. Med. Biol. Eng., 5, 433.
2. Akizuki, S. et al. (1986) Tensile properties of knee joint cartilage. I. Influence of ionic condition, weight bearing and fibrillation on the tensile modulus. J. Orthop. Res., 4, 379.
3. Ali, S.Y. & Evans, L. (1973) Enzymatic degradation of cartilage in osteoarthritis. Fed. Proc., 32, 1494.
4. Alm, A., Ekström, H., Gillquist, J. & Strömberg, B. (1974) The anterior cruciate ligament. A clinical and experimental study on tensile strength, morphology and replacement by patellar ligaments. Acta Chir. Scand., Suppl. 445, 1-49.
5. Armstrong, C.G. & Mow, V.C. (1980) Friction, lubrication and wear of synovial joints. In: R. Owen, J. Goodfellow & P. Bullough (eds.). Scientific Foundations of Orthopaedics and Traumatology. London: William Heinemann.