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IEEE Communications Magazine > 2011 > 49 > 2 > 140 - 147
IEEE Transactions on Industrial Electronics > 2011 > 58 > 9 > 4471 - 4479
IEEE Communications Magazine > 2011 > 49 > 2 > 140 - 147
IEEE Transactions on Industrial Electronics > 2011 > 58 > 9 > 4471 - 4479