1. The Hydrolysis of Cateons 1976
2. U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 1981 81-1183
3. U.S. GEOLOGICAL SURVEY WATER-RESOURCES INVESTIGATION REPORT 1985 85-4169
4. BENCALA K unpublished data.
5. Natural benefication of acid mind drainage by interaction of strcam sediment;Sixth Sympoium on Coal Mine Drainage Research,1976