Hirata, K. ICFA beam dynamics newsletter, : No. 20. Editors in chief : K. Hirata, J.M. Jowett ; Editors : W. Chou, S. Ivanov, H. Mais, J. Wei, D. H. Whittum, C. Zhang.w. - 144 pages : illustrations ; 28 cm Subjects--Topical Terms: Quantum electrodynamics LC Class. No.: QC689.55.F75 / .A38 2000