1. BMT Inc. Information from Boral Material Technologies Inc., 45 Northeast Loop 410, Suite 700 San Antonio, Texas 78216, USA (2008), Tel: 800-964-0951
2. Boyd, A.J., Birgisson, B., Beatty, C., Zaman, A.: Utilization of phosphatic clay waste in concrete. FIPR Project Number: 03-02-164, Florida Institute of Phosphate Research, Bartow, Florida (2007)
3. Cementec Inc. Information from Cementec Industries Limited, 288, 200 Rivercrest Drive SE, Calgary, Alberta, Canada T2C 2X5 (2008), Tel: (403) 720-6699
4. Collepardi, M., Collepardi, S., Skarp, U., Troli, R.: Optimization of Silica Fume, Fly Ash and Amorphous Nano-Silica in Superplasticized High-Performance Concrete, American Concrete Institute, May 1, pp. 495-506 (2004)
5. Dham, M.: Nanomodification of Cement Matrix for Enhanced Ductility and Fracture Properties in Concrete. Doctoral dissertation, University of Florida, 315 p. (2007)