ZhETF, Vol. 41,
No. 3,
p. 989 (March 1962)
(English translation - JETP,
Vol. 14,
No. 3,
p. 702,
March 1962
)
The issue content is only available in english translation.
What is Heavier, "Muonium One" or "Muonium Two"?
L.B. Okun', B. Pontecorvo
Received: August 10, 1961
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