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IEEE Systems Journal > 2015 > 9 > 2 > 519 - 528
IEEE Transactions on Network and Service Management > 2012 > 9 > 3 > 254 - 267
IEEE Systems Journal > 2015 > 9 > 2 > 519 - 528
IEEE Transactions on Network and Service Management > 2012 > 9 > 3 > 254 - 267