E.J. Curry, S. Fabbri, A. Gover, and P. Musumeci, "THz Based Phase-Space Manipulation in a Guided IFEL", in Proc. 37th International Free Electron Laser Conference, Daejeon, Republic of Korea, August 2015, paper TUP069, pp. 519-522, ISBN: 978-3-95450-134-2, doi:10.18429/JACoW-FEL2015-TUP069, http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup069.pdf, 2015.