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IEEE Transactions on Signal Processing > 2011 > 59 > 2 > 848 - 853
IEEE Transactions on Communications > 2011 > 59 > 6 > 1519 - 1524
IEEE Transactions on Communications > 2011 > 59 > 4 > 923 - 929
IET Communications > 2011 > 5 > 8 > 1039 - 1043