1. D. F. Williams andR. Roaf, ?Implants in Surgery? (W. B. Saunders, London, 1973).
2. D. F. Williams, (Ed), ?Biocompatibility of Clinical Implant Materials? Vol. II (CRC Press, Boca Raton, Florida, USA, 1981).
3. C. G. Gebelein andF. F. Koblitz, ?Biomedical and Dental Applications of Polymers? (Plenum Press, New York, 1981).
4. D. J. Lyman andW. J. Seare,Ann. Rev. Mater. Sci. 4 (1974) 415.
5. B. Bloch andG. W. Hastings, ?Plastic Materials in Surgery? (C. C. Thomas, Springfield, Illinois, USA, 1972).