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IEEE Systems Journal > 2015 > 9 > 3 > 865 - 877
Information Sciences > 2010 > 180 > 24 > 4940-4957
Data & Knowledge Engineering > 1999 > 29 > 2 > 121-145
IEEE Systems Journal > 2015 > 9 > 3 > 865 - 877
Information Sciences > 2010 > 180 > 24 > 4940-4957
Data & Knowledge Engineering > 1999 > 29 > 2 > 121-145