@book{
      international1997iaea,
      title={The Use of Plane Parallel Ionization Chambers in High Energy Electron and Photon Beams},
      author={ },
      series={entity},
      number={381 },
      year={1997},
      isbn={92-0-104896-3 },
      url={/publications/5715/the-use-of-plane-parallel-ionization-chambers-in-high-energy-electron-and-photon-beams },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }