Physico-chemical transformations during thermal treatment of phosphorites and solubility of the productsKaljuvee, Tiit; Kuusik, Rein, keemik; Veiderma, MihkelPhosphorus research bulletin1999 / Special issue: Proceedings of the Third International Symposium on Inorganic Phosphate Materials '99 : Villeneuve d'Ascq, France, September 14-16, 1999, p. 335-340: ill Physico-chemical transformations during thermal treatment of phosphorites and solubility of the productsKaljuvee, Tiit; Kuusik, Rein, keemik; Veiderma, MihkelThird International Symposium on Inorganic Phosphate Materials : Villeneuve d'Ascq, France, September 14-16, 1999 : book of abstracts1999 / p. P.2.17 https://www.researchgate.net/publication/276322876_PHYSICO-CHEMICAL_TRANSFORMATIONS_DURING_THERMAL_TREATMENT_OF_PHOSPHORITES_AND_SOLUBILITY_OF_THE_PRODUCTS