S. Spampinati, B.D. Muratori, N. Thompson, and P.H. Williams, "A Laser Heater for CLARA", in Proc. 37th International Free Electron Laser Conference, Daejeon, Republic of Korea, August 2015, paper MOP044, pp. 129-132, ISBN: 978-3-95450-134-2, doi:10.18429/JACoW-FEL2015-MOP044, http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/mop044.pdf, 2015.