1. First lasing of the Jefferson Lab IR Demo FEL;Benson;Nucl. Instrum. Methods Phys. Res., Sect. A,1999
2. K. Hayakawa, Y. Hayakawa, K. Nakao, K. Nogami, T. Tanaka, A. Enomoto, S. Fukuda, K. Furukawa, S. Michizono, S. Ohsawa, M. Inagaki, T. Kuwada, T. Sakai, I. Sato, Operation of near-infrared FEL at Nihon University, in: Proceedings of the 29th International Free Electron Laser Conference, Novosibirsk, Russia, 2007, p. 114.
3. First lasing of the ALICE infra-red free-electron laser;Thompson;Nucl. Instrum. Methods Phys. Res., Sect. A,2012
4. High-power terahertz radiation from relativistic electrons;Carr;Nature,2002
5. Observation of intense terahertz-wave coherent synchrotron radiation at LEBRA;Sei;J. Phys. D: Appl. Phys.,2013