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IEEE Transactions on Signal Processing > 2010 > 58 > 2 > 735 - 749
IEEE Transactions on Signal Processing > 2010 > 58 > 2 > 720 - 734
IEEE Transactions on Signal Processing > 2009 > 57 > 11 > 4482 - 4496
IEEE Communications Magazine > 2009 > 47 > 3 > 150 - 156