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2. Effects of copper on embryonic and juvenile stages of aquatic animals;Birge,1979
3. Relationship of mubial activity and Ceriodaphnia responses to mining impacts on the Clark Fork River, Montana;Burton;Arch. Environ. Contam. Toxicol.,1987
4. Regulation of lake primary productivity by food web structure;Carpenter;Ecology,1987
5. Atomic absorption spectroscopy. Applications in agriculture, biology and medicine;Christian,1970