1. Szwajczak, E., Kucaba-Pietal, A., Telega, J.J.: Liquid crystalline properties of synovial fluid. Eng. Trans. 49, 315–358 (2001)
2. Maroudas, A.: Hyaluronic acid films. Proc. Inst. Mech. Eng. 181, 122–124 (1967)
3. McCutchen, C.W.: The frictional properties of animal joints. Wear 5, 1–17 (1962)
4. Mukherjee, K.K., Bose, K.K.: In: Tandon, P.N., Kapur J.N. (eds.) Studies in Biomechanics, pp. 111–114. HBTI Publications, India (1980)
5. Rieker, C.: Sulzer Orthopaedics, personal communication (1999)