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IEEE Communications Surveys & Tutorials > 2015 > 17 > 2 > 1126 - 1165
IEEE Latin America Transactions > 2011 > 9 > 2 > 199 - 205
IEEE Network > 2011 > 25 > 1 > 4 - 13
IEEE Latin America Transactions > 2010 > 8 > 4 > 454 - 462
IEEE Network > 2010 > 24 > 2 > 36 - 41