1. Air oxidation of aqueous sodium sulfide solutions with coal fly ash;Mallik;Water Res,1999
2. Beeghly JH. Roller compacted base course construction using lime stabilized fly ash and flue gas desulfurization sludge by-product. Proceedings, American Chemical Society, Division of Fuel Chemistry, Vol. 41, New Orleans, 1996.
3. Coal fly ash: a review of the literature and proposed classification system with emphasis on environmental impacts;Roy;Environ Geol Notes,1981
4. Chestnut RJ, Cloussi JJ, Frost DJ, U.S. Patent 4514307, 1985.