1. M.I. Kay, R.A. Young, and A.S. Posner, Crystal structure of hydroxyapatite, Nature 204: 1050, (1964).
2. J.C. Elliot, P.E. Mackie and R.A. Young, Monoclinic hydroxyapatite, Science, 180: 1055-1057, (1973).
3. J.L. Lacout, Calcium Phosphate as Biomaterials, in BIOMATERIALS - Hard Tissue Repair and Replacement. Vol. 3 (D. Muster, editor), Elsevier, Amsterdam, (1992).
4. R. Z. LeGeros, Biological and Synthetic Apatites, in Hydroxyapatite and Related Materials, (P.W. Brown, B. Constantz, eds. ), CRC Press, Boca Raton, (1994).
5. E. Rivera-Muñoz, W. Brostow, R. Rodríguez, V.M. Castaño, Mat. Res. Inovat. 4, 222 (2001).