The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
A.W.L. Mak, F. Curbis, and S. Werin, “Methods for the Optimization of a Tapered Free-Electron Laser”, in Proc. 5th Int. Particle Accelerator Conf. (IPAC'14), Dresden, Germany, June 2014, pp. 2909-2911, doi:10.18429/JACoW-IPAC2014-THPRO023