1. The importance of trace metal speciation to water quality criteria
2. Allen, H.E., Yin, Y., 1996. The importance of organic matter on the sorption of cadmium and mercury to soil. The 6th International Conference on Preservation of Our World in the Wake of Change, Jerusalem, Israel.
3. Heavy Metals in Soils;Alloway,1995
4. Soil Nutrient Bioavailability. A Mechanistic Approach;Barber,1995
5. The use of extractants in studies on trace metals in soils, sewage sludges, and sludge-treated soils;Beckett;Adv. Soil. Sci.,1989