(1977). Physical review letters, 1977, Vol.68B-69B, No.01-05.
Chicago Edition CitationPhysical Review Letters, 1977, Vol.68B-69B, No.01-05. American Physical Society, New York, 1977.
MLA Edition CitationPhysical Review Letters, 1977, Vol.68B-69B, No.01-05. 1977.
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