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| 1981 | ||
|---|---|---|
| 2 | Motoaki Ohkubo: A strong outer bound to the capacity region for multiple access channels. IEEE Transactions on Information Theory 27(4): 505- (1981) | |
| 1 | Motoaki Ohkubo: Universal coding for multiple access channels. IEEE Transactions on Information Theory 27(6): 728-734 (1981) | |