C.H. Shim, I.S. Ko, and Y.W. Parc,
   "New Soft X-Ray Undulator Line Using 10 GeV Electron Beam in PAL-XFEL",
   in Proc. 37th International Free Electron Laser Conference, Daejeon, Republic of Korea, August 2015, paper MOP082, pp. 237-240,
    ISBN: 978-3-95450-134-2,
    doi:10.18429/JACoW-FEL2015-MOP082,
    http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/mop082.pdf, 2015.