@book{
      international1999iaea,
      title={Nuclear Geophysics and Its Applications},
      author={ },
      series={entity},
      number={393 },
      year={1999},
      isbn={92-0-100699-3 },
      url={/publications/5727/nuclear-geophysics-and-its-applications },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }