Cassidy, D. B.Cowan, T. E.Howell, R. H.Hunt, A. W.Sterne, P. A.2004-12-032004-12-0320012001http://hdl.handle.net/2003/118810.17877/DE290R-11012enThe American Physical SocietyPhysical Review Letters530Erratum: Doppler Broadening of In-Flight Positron Annihilation Radiation due to Electron Momentum [Phys. Rev. Lett. 86, 5612 (2001)]10.1103/PhysRevLett.87.139901article (journal)