DOI:https://doi.org/10.1103/PhysRevLett.7.378
©1961 American Physical Society
William Slater, Donald H. Stork, and Harold K. Ticho
Wonyong Lee, William Chinowsky, Gerson Goldhaber, Sulamith Goldhaber, and Thomas O'Halloran
Vol. 7, Iss. 10 — 15 November 1961
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