The American Journal of Sociology, Vol. 94, No. 3. (1988), pp. 502-534.
(1990)
(2004), pp. 1279-1282.
(2003)
(2004)
(23 September 1999)
(28 Feb 2005)
(17 Feb 2004)
(23 Jul 2003)
(19 Aug 2005)
(11 Apr 2005)
(17 November 2004)
(14 Feb 2006)
Library Hi Tech, Vol. 23, No. 4. (January 2005), pp. 469-480.
(2006)
(1991), pp. 85-110.
Am Psychol, Vol. 56, No. 9. (September 2001), pp. 717-734.
(11 Dec 2004)
(2006)
by Sheng
Wu, Cathy S
Lin, Tung-Ching
Lin
(20 Jun 2005)
(2005), pp. 147-158.
Educational Studies in Mathematics, Vol. 42, No. 3. (2000), pp. 237-268.
Commun. ACM, Vol. 40, No. 3. (March 1997), pp. 63-65.
(2005)
(29 Dec 2005)
Science, Vol. 303, No. 5663. (5 March 2004), pp. 1538-1542.
Science, Vol. 308, No. 5722. (29 April 2005), pp. 697-702.
(February 2002)
(May 2004)
(July 1967)
(2004), pp. 152-161.
(1999), pp. 116-123.
interactions, Vol. 7, No. 6. (2000), pp. 36-45.
Commun. ACM, Vol. 43, No. 12. (December 2000), pp. 45-48.
(26 May 2003)
(01 November 2000)
D-Lib Magazine, Vol. 12, No. 1. (2006)
(24 February 2003)
International Journal of Behavioral Development, Vol. 28, No. 4. (July 2004), pp. 347-357.
(28 Nov 2005)
D-Lib Magazine, Vol. 11, No. 4. (2005)
Interaction Studies, Vol. 6, No. 3. (2005), pp. 463-481.
(1998), pp. 42-60.
(1998), pp. 73-79.
(2003)