Brambilla, M.García-Ojalvo, J.San Miguel, M.Torrent, M. C.Vilaseca, R.2004-12-032004-12-0320012001http://hdl.handle.net/2003/84110.17877/DE290R-10698enThe American Physical SocietyPhysical Review Letters530Two-Photon Cavity Solitons in Active Optical Media10.1103/PhysRevLett.87.083902article (journal)