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2. Observations on Calcium Sulphate Dihydrate Formed in Media Rich in Phosphoric Acid;Adimi;J. Applied Chem.,1968
3. The Nature of Phosphogypsum Impurities and Their Influence on Cement Hydration;Tabikh;Cement and Concrete Res.,1971
4. Fluorgypsum as a Mineralizer in Portland Cement Clinker Manufacture;Tewari;Am. Cera. Soc. Bull.,1972