1. Acid-Base Cements;Wilson,1993
2. F.G. Sherif, E.S. Michaels, Fast-Setting Cements from Liquid Waste Phosphorous Pentoxide Containing Materials, U.S. Patent No. 4,487,632, 1984.
3. F.G. Sherif, E.S. Michaels, Fast-Setting Cements from Solid Phosphorus Pentoxide Containing Materials, U.S. Patent No. 4,505,752, 1985.
4. F.G. Sherif, A.G. Ciamei, Fast-Setting Cements from Superphosphoric Acid, U.S. Patent No. 4,734,133, 1988.
5. F.G. Sherif, F.A. Via, Production of Solid Phosphorous Pentoxide Containing Materials for Fast Setting Cements, U.S. Patent No. 4,755,227, 1988.