D-Lib Magazine (January 1997)
(2004)
(2007)
First Monday, Vol. 5, No. 2. (February 2000)
Information Processing & Management, Vol. In Press, Corrected Proof
Inf. Process. Manage., Vol. 42, No. 4. (July 2006), pp. 1123-1131.
Library & Information Science Research, Vol. 23, No. 2. ( 2001), pp. 167-185.
International Journal of Human-Computer Studies, Vol. 52, No. 5. (May 2000), pp. 805-830.
Journal of Economic Behavior & Organization, Vol. 35, No. 3. (15 April 1998), pp. 309-332.
International Journal of Human-Computer Studies, Vol. 51, No. 2. (August 1999), pp. 435-452.
Library & Information Science Research, Vol. 20, No. 2. (1998), pp. 115-131.
The Internet and Higher Education, Vol. 1, No. 3. (1998), pp. 191-201.
Social Science Information Studies, Vol. 4, No. 2-3. ( 1984), pp. 167-183.
Library & Information Science Research, Vol. 27, No. 2. ( 2005), pp. 203-221.
Inf. Process. Manage., Vol. 41, No. 2. (March 2005), pp. 361-381.
Inf. Process. Manage., Vol. 37, No. 2. (March 2001), pp. 295-311.
Information Processing & Management, Vol. 36, No. 2. (01 March 2000), pp. 207-227.
Information Processing & Management, Vol. 42, No. 1. (January 2006), pp. 248-263.
Library & Information Science Research, Vol. 28, No. 3. ( 2006), pp. 407-432.
Computers in Human Behavior, Vol. In Press, Corrected Proof
Information Processing & Management, Vol. 44, No. 1. (January 2008), pp. 373-385.
Computers in Human Behavior, Vol. In Press, Corrected Proof
Research in Developmental Disabilities, Vol. In Press, Corrected Proof
(2003)
Computer Networks, Vol. 33, No. 1-6. (June 2000), pp. 337-346.
(2001), pp. 506-513.
(1997)
(2007)
(2006)
(16 March 2007)
The Knowledge Tree, Vol. 7 (2005)
(1998)
J. Am. Soc. Inf. Sci., Vol. 51, No. 13. (November 2000), pp. 1232-1247.
European Journal of Open Distance E-Learning (2006)
Journal of Educational Multimedia and Hypermedia, Vol. 13, No. 1. (2004), pp. 93-106.