DOI:https://doi.org/10.1103/RevModPhys.21.101
©1949 American Physical Society
H. L. Bradt*, Phyllis Freier†, E. J. Lofgren†, E. P. Ney†, F. Oppenheimer†, and B. Peters*
Vol. 21, Iss. 1 — January - March 1949
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