Mei, Jing; Harold Boley (2006). "Interpreting SWRL Rules in RDF Graphs". Electronic Notes in Theoretical Computer Science (Elsevier) (151): 53–69. Retrieved on 29 July 2006.
TagCommons is a place and a process for us to create ways to share and interoperate over tagging data. We believe that the world should have the benefits of rich social tagging across applications, communities, and spaces.
J. Waitelonis, N. Ludwig, M. Knuth, и H. Sack. International Journal of Interactive Technology and Smart Education (ITSE), Special Issue on Multimedia technologies for e-learning, 8 (4):
236--248(2011)