Abazov, V. M.Abbott, B.Abdesselam, A.Abolins, M.Abramov, V.2004-12-032004-12-0320012001http://hdl.handle.net/2003/190110.17877/DE290R-11590enThe American Physical SocietyPhysical Review Letters530Ratio of Isolated Photon Cross Sections in pp-bar Collisions at sqrt(s) = 630 and 1800 GeV10.1103/PhysRevLett.87.251805article (journal)