1. Hydrolysis and sorption of ortho, pyro, tripoly and trimetaphosphate in 32 midwestern soils;Blanchar,1969
2. Determination of orthophosphate in soil containing excess pyrophosphate;Douglas;Commun. Soil Sci. Pl. Anal.,1975
3. Hydrolysis of pyrophosphate in soils: pH and biological effects;Gilliam;Soil Sci.,1968
4. Histochemical demonstration of sites of choline esterase activity;Gomori,1948
5. Reactions of triammonium pyrophosphate with soils and soil minerals;Hashimoto,1969