1. A. Zholents, W. Gai, R. Lindberg, J.G. Power, Y. Sun, C. Jing, et al., Proceedings of the 2014 Free-Electron Laser Conference, Basel, Switzerland, 2014.
2. J. Power, A. Zholents, K.-J. Kim, M. Conde, et al., Proceedings of the 2015 International Particle Accelerator Conference, Dresden, Germany, 2014.