Y. Taira,
   "Diffraction Radiation Monitor",
   in Proc. 37th International Free Electron Laser Conference, Daejeon, Republic of Korea, August 2015, paper TUD02, pp. 561-563,
    ISBN: 978-3-95450-134-2,
    doi:10.18429/JACoW-FEL2015-TUD02,
    http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tud02.pdf, 2015.