1. A.F. Hollemann, E. Wiberg, Lehrbuch der Anorganischen Chemie, Auflage, Walter-de Gruyter, New York, 1985, pp. 91–100
2. B.K.B. Berkovitz, G.R. Holland, B.J. Moxham, A Colour Atlas and Text of Oral Anatomy, Histology and Embryology, second ed., Wolfe Publishing, Aylesbury, 1992
3. Tooth enamel remineralization
4. J. Arends, W.L. Jongebloed, J. Schuthof, in: S.A. Leach, W.M. Edgar (Eds.), Demineralisation and Remineralisation of the Teeth, IRL Press, Oxford, 1983, p. 155
5. F. Driessens, in: M. Myers (Ed.), Monographs of Oral Sciences, vol. 10, Karger, Basel, 1982, p. 49