1. J.W. Flanagan, et al., Conference Proceedings C 0806233 (2008) http://accelconf.web.cern.ch/AccelConf/e08/papers/tuocm02.pdf
2. J. Alexander, et al., in: Proceedings of PAC09, https://accelconf.web.cern.ch/accelconf/PAC2009/papers/th5rfp026.pdf, 2009
3. J. Alexander, et al., in: Proceedings of PAC09, https://accelconf.web.cern.ch/accelconf/PAC2009/papers/th5rfp027.pdf, 2009.
4. J.W. Flanagan, et al., in: Proceedings of PAC09, Vancouver, http://epaper.kek.jp/PAC2009/papers/th5rfp048.pdf, 2009
5. J.W. Flanagan, et al., in: Proceedings of PASJ10, Himeji, http://pasj.jp/web_publish/pasj7/proceedings/P_4PM/P_EH_4PM/WEPS095.pdf, 2010