（１） Effect of Impurity on Two-Dimensional Kinetics: Case Studies of Magnesium and Zinc on 　Hydroxyapatite (0001) Face
　　　By Kanzaki, Noriko;　Onuma, Kazuo; Treboux, Gabin; Tsutsumi, Sadao; Ito, Atsuo
　　　J. Phys. Chem. B,105(10),1991-1994(English) 2001 American Chemical Society.

（２） Effect of ferricenium salt on the crystal growth of hydroxyapatite in aqueous solution
　　　By　Koutsopoulos, S.; Pierri, E.; Dalas, E; Tzavellas, N.; Klouras, N.
　　　J. Cryst. Growth, 218(2-4),353-358(English) 2000　Elsevier

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