DOI:https://doi.org/10.1103/PhysRevLett.10.407
©1963 American Physical Society
C. Bernardini, G. F. Corazza, G. Di Giugno, and G. Ghigo
J. Haissinski and P. Marin
R. Querzoli
B. Touschek
Vol. 10, Iss. 9 — 1 May 1963
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