Foot, C. J.Hechenblaikner, G.Hodby, E.Maragò, O. M.2004-12-142004-12-1420012001http://hdl.handle.net/2003/1859510.17877/DE290R-16226enThe American Physical SocietyPhysical Review Letters530Experimental Observation of Beliaev Coupling in a Bose-Einstein Condensate10.1103/PhysRevLett.86.2196article (journal)