@book{
      internationaliaea,
      title={X Ray Fluorescence in the IAEA and its Member States
Newsletter No. 21, July 2011},
      author={ },
      series={entity},
      number={ },
      year={},
      isbn={ },
      url={/publications/8849/x-ray-fluorescence-in-the-iaea-and-its-member-states-newsletter-no-21-july-2011 },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }