@book{
      international2011iaea,
      title={Naturally Occurring Radioactive Material (NORM VI)},
      author={ },
      series={entity},
      number={ },
      year={2011},
      isbn={978-92-0-113910-8 },
      url={/publications/8557/naturally-occurring-radioactive-material-norm-vi },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }