1. Wilson, A. D., A survey of Dental Practice in the Use of Silicate Cements (Ministry of Technology, 1969).
2. Skinner, E. W., and Phillips, R. W., The Science of Dental Materials, sixth ed. (W. B. Saunders Co., Philadelphia and London, 1967).
3. Vail, J. G., Soluble Silicates, Their Properties and Uses, 2 (Technology) (Reinhold Publishing Corporation, New York, 1952).
4. Steenbock, P., German Pat. 174,557 (1903);
5. Brit. Pat. 15,176; 15,181 (1904).