Artoni, M.Bassani, F.Carusotto, I.La Rocca, G. C.2004-12-032004-12-0320012001http://hdl.handle.net/2003/72410.17877/DE290R-10597enThe American Physical SocietyPhysical Review Letters530Slow Group Velocity and Cherenkov Radiation10.1103/PhysRevLett.87.064801article (journal)