@book{
      international1994iaea,
      title={Nuclear Data Newsletter Issue No. 20, November 1994},
      author={ },
      series={entity},
      number={20 },
      year={1994},
      isbn={ },
      url={/publications/4871/nuclear-data-newsletter-issue-no-20-november-1994 },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }