1. Study of acidulated fluoride solutions I. In vitro effect on enamel;Brudevold;Archs oral Biol.,1963
2. Phase equilibria along the fluoroapatite-hydroxyapatite ion of the system CaF2-CaO-P2O5-H2O under aqueous conditions;Duff;J. chem. Soc. (A),1971
3. The transformations brushite-fluoroapatite and monetite-fluoroapatite in aqueous acidic KF solutions;Duff;J. chem. Soc. (A),1971
4. Phase equilibrium in the system CaF2-CaO-P2O5-H2O under aqueous conditions;Duff;J. dent. Res.,1971
5. The synthesis of fluoroapatite by a process of cyclic variation of pH;Duff;Chem. Ind.,1974