1. Trace elements in the terrestial environment;Adriano,1986
2. The accumulation of cadmium by vegetables grown on soils contaminated from a variety of sources;Alloway;Sci Total Environ,1990
3. Factors affecting the trace element content of pastures;Archer,1971
4. Pollution of soils by cadmium;Asami,1984
5. Cadmium pollution of soils and human health in Japan;Asami,1991