@book{
  international2020iaea,
  title={Application of the Graded Approach to Post-closure Safety Assessment for the Disposal of Disused Sealed Radioactive Sources in Boreholes},
  series={TECDOC Series},
  number={1928},
  year={2020},
  isbn={978-92-0-119120-5},
  url={https://www.iaea.org/publications/14734/application-of-the-graded-approach-to-post-closure-safety-assessment-for-the-disposal-of-disused-sealed-radioactive-sources-in-boreholes},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}