@book{
      international2010iaea,
      title={Reference Material IAEA 434: Naturally Occurring Radionuclides in Phosphogypsum},
      author={ },
      series={entity},
      number={17 },
      year={2010},
      isbn={ },
      url={/publications/8489/reference-material-iaea-434-naturally-occurring-radionuclides-in-phosphogypsum },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }