Media type: E-Article Title: Two-photon exchange in elastic electron-nucleon scattering Contributor: Blunden, P. G.; Melnitchouk, W.; Tjon, J. A. Published: American Physical Society (APS), 2005 Published in: Physical Review C, 72 (2005) 3 Language: English DOI: 10.1103/physrevc.72.034612 ISSN: 0556-2813; 1089-490X Origination: Footnote: