Dear All, Thanks for the IPAC committee, especially Vladimir, I have a chance to give a talk about the recent R&D for muon collider at IPAC'12. In order to introduce our activites, may I put your name and presentation of IPAC'12 in my talk as a citation? If you give me permission, please send me (yonehara at fnal.gov) your presentation title. With best, Katsuya