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An overview
Physics Today 29 (5), 23–25 (1976);
This article has been cited by the following articles in journals that are participating in CrossRef Cited-by Linking.
- M. J. Buckler
- M. R. Santana
- M. J. Saunders
Bell System Technical Journal 57 (6), 1745 (1978);
- T. Maione
- D. Sell
IEEE Transactions on Communications 25 (5), 517 (1977);