Nigel J. Shevchik

JUL 01, 1979

DOI: 10.1063/1.2995631

William Paul

Manuel Cardona

Philip B. Allen

This article is only available in PDF format

More about the Authors

William Paul. Harvard University.

Manuel Cardona. Max Planck Institute, Stuttgart, Federal Republic of Germany.

Philip B. Allen. State University of New York, Stony Brook.

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Volume 32, Number 7

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