Chemical interaction of copper sulfate with calcium dihydrophosphateViisimaa, Ludmilla; Vilbok, HeinrichXI. International Conference on Phosphorus Chemistry, Tallinn, USSR July 3-7, 1989 : abstracts of posters. II1989 / [p. 93] https://www.ester.ee/record=b1209881*est Decomposition mechanism of hydroxyfluorapatite in phosphoric acid - thermal treatmentPõldme, Meeme; Raude, Urmas; Aruväli, Jaan; Utsal, KaljuXI. International Conference on Phosphorus Chemistry, Tallinn, USSR July 3-7, 1989 : abstracts of posters. II1989 / [p.86] https://www.ester.ee/record=b1209881*est Thermal dehydration of the mixture of calcium dihydrogen phosphate and glauconiteTõnsuaadu, Kaia; Veiderma, MihkelXI. International Conference on Phosphorus Chemistry, Tallinn, USSR July 3-7, 1989 : abstracts of posters. II1989 / [p. 90] https://www.ester.ee/record=b1209881*est Thermal transformations in systems based on natural apatitesVeiderma, Mihkel; Kaljuvee, Tiit; Knubovets, Rena; Põldme, Meeme; Tõnsuaadu, KaiaXI. International Conference on Phosphorus Chemistry, Tallinn, USSR July 3-7 1989 : abstracts of lectures. I1989 / [p. 137] https://www.ester.ee/record=b1209888*est Transformation of calcium dihydrogenphosphate in mixtures with apatite concentrate upon heatingPõldme, Meeme; Põldme, JutaXI. International Conference on Phosphorus Chemistry, Tallinn, USSR July 3-7, 1989 : abstracts of posters. II1989 / [p. 87] https://www.ester.ee/record=b1209881*est