DOI:https://doi.org/10.1103/PhysRevLett.12.733
©1964 American Physical Society
P. F. Yergin, R. H. Augustson, N. N. Kaushal, H. A. Medicus, W. R. Moyer, and E. J. Winhold
Vol. 12, Iss. 26 — 29 June 1964
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