Thermal transformations in systems based on natural apatitesVeiderma, Mihkel; Kaljuvee, Tiit; Knubovets, Rena; Põldme, Meeme; Tõnsuaadu, KaiaPhosphorus, sulfur and silicon and the related elements1990 / p. 125-128

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