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IEEE Transactions on Professional Communication > 2011 > 54 > 1 > 18 - 30
IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and... > 2009 > 39 > 4 > 819 - 839
IEEE Security & Privacy > 2008 > 6 > 1 > 78 - 80
IEEE Distributed Systems Online > 2008 > 9 > 12 > 1