Nested knowledge space model and awareness processing in the Web-based collaborative learning environment
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2005 ◽
Vol 42
(7)
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pp. 1159
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2002 ◽
Vol 39
(2)
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pp. 161-182
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2003 ◽
Vol 19
(4)
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pp. 462-473
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2001 ◽
Vol 7
(2-3)
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pp. 285-312
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2006 ◽
Vol 16
(3/4)
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pp. 238