B. Beutner, H. Dinter, and M. Dohlus,
   "RFTweak 5 - An Efficient Longitudinal Beam Dynamics Code",
   in Proc. 37th International Free Electron Laser Conference, Daejeon, Republic of Korea, August 2015, paper MOP060, pp. 176-180,
    ISBN: 978-3-95450-134-2,
    doi:10.18429/JACoW-FEL2015-MOP060,
    http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/mop060.pdf, 2015.