@book{
  international2011iaea,
  title={SSDL Newsletter Issue No. 59, April 2011},
  series={SSDL Newsletter},
  year={2011},
  url={https://www.iaea.org/publications/8723/ssdl-newsletter-issue-no-59-april-2011},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}