(New York), American physical Society, 1961. Lex8vo. In the original printed blue wrappers. In "Physical Review Letters", Volume 7, No. 2, July 15, 1961. A very nice and clean copy externally as well as internally, near mint. Pp. 46-50. [Entire issue: 41-74].
First appearance if this important paper on superconductivity in which Byers and Yang showed that flux quantization in superconductors in units of hc/2e is experimental evidence for the Cooper pairing of electrons described in the BCS theory of superconductivity.
Order-nr.: 49375