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IEEE Transactions on Services Computing > 2012 > 5 > 2 > 149 - 163
IEEE Transactions on Services Computing > 2011 > 4 > 1 > 31 - 43
IEEE Software > 2011 > 28 > 4 > 74 - 83
MSIE 2011 > 761 - 764
IEEE Latin America Transactions > 2011 > 9 > 2 > 152 - 159