1. Adami A. etRidge M. J.— J. Appl. Chem., vol. 18, (12), 1968, p. 361–363.
2. ASTM.— Annual Book of ASTM Standards, Part 9, Cement, Lime, Gypsum.
3. Bachiorrini A. etSassi F.— II Cemento (Ital.), (4), 1974, p. 177–184.
4. Bachiorrini A. etMurat M.— II Cemento (Ital.), (3), 1976, p. 151–156.
5. Bachiorrini A. etMurat M.— II Cemento (Ital.), (3), 1976, p. 151–156.