1. 1W. D. Kingery ; pp.286 -305 inThe Physics and Chemistry of Ceramics, Proceedings of a Symposium Held at the Pennsylvania State University, May 28-30, 1962 . Gordon and Breach Science Publishers, New York, 1963 .
2. 2Wolfgang Czernin , Cement Chemistry for Civil Engineers (Zementchemie fur Bauingenieure) . Bauverlag GmbH, Wiesbaden, 1960 ; 150 pp.