DOI:https://doi.org/10.1103/PhysRevLett.7.261
©1961 American Physical Society
J. P. Garron, J. C. Jacmart, M. Riou, C. Ruhla, J. Teillac, and C. Caverzasio
K. Strauch
Vol. 7, Iss. 6 — 15 September 1961
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