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Journal of Industrial Engineering International > 2017 > 13 > 4 > 513-520
Lecture Notes in Computer Science > Online Communities and Social Computing > Part II: Knowledge, Collaboration, Learning and Local On-Line Communities > 250-255
Journal of Earth Science > 2012 > 23 > 6 > 914-918
Procedia Engineering > 2012 > 41 > Complete > 196-201