1. Cadmium levels in biota and abiota from Lake Maggiore;Gommes,1976
2. Soil characteristics associated with the wet cultivation of rice;Grant,1965
3. Absorption of cadmium by rice plants in response to change of oxidation-reduction of soils;Ito;J. Sci. Soil Manure, Tokyo,1975
4. Availability of soil cadmium to rice plants under oxidizing and reducing soil conditions;Reiniger,1976
5. Concentrations of copper, iron, lead, nickel and zinc in freshwater algal bloom;Trollope;Environ. Pollut.,1976