1. Relationship between sorption and desorption of phosphorus by soils;Ballaux,1975
2. Urease activity on a clay-organic complex;Boyd;Soil Sci. Soc. Am. J.,1985
3. Enzyme interactions with clays and clay-organic matter complexes;Boyd,1990
4. Alkaline phosphatases;Bretaudiere,1984
5. Interactions of enzymes with soil minerals and organic colloids;Burns,1986