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IEEE Internet Computing > 2011 > 15 > 2 > 27 - 34
IEEE Latin America Transactions > 2011 > 9 > 2 > 219 - 230
IEEE Transactions on Education > 2011 > 54 > 2 > 188 - 196
2010 IEEE 2nd Symposium on Web Society > 513 - 516
IEEE Internet Computing > 2011 > 15 > 2 > 27 - 34
IEEE Latin America Transactions > 2011 > 9 > 2 > 219 - 230
IEEE Transactions on Education > 2011 > 54 > 2 > 188 - 196
2010 IEEE 2nd Symposium on Web Society > 513 - 516