Kevin R. Page Danius T. Michaelides David De Roure Nigel R. Shadbolt Yun-Heh Chen-Burger Jeff Dalton Stephen Potter Austin Tate Simon Buckingham Shum Marc Eisenstadt Michelle Bachler Jirí Komzák Collaboration in the Semantic Grid: A Basis for E-Learning. 881-904 2005 19 Applied Artificial Intelligence 9-10 http://dx.doi.org/10.1080/08839510500234750 db/journals/aai/aai19.html#PageMRSCDPTSEBK05