@book{
      international1990iaea,
      title={Recommendations for the Safe Use and Regulation of Radiation Sources in Industry, Medicine, Research and Teaching},
      author={ },
      series={entity},
      number={102 },
      year={1990},
      isbn={92-0-123390-6 },
      url={/publications/3678/recommendations-for-the-safe-use-and-regulation-of-radiation-sources-in-industry-medicine-research-and-teaching },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }