@book{
      international1999iaea,
      title={SSDL Newsletter Issue No. 40, January 1999},
      author={ },
      series={entity},
      number={40 },
      year={1999},
      isbn={ },
      url={/publications/5731/ssdl-newsletter-issue-no-40-january-1999 },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }