College & Research Libraries, Vol. 63, No. 4. (2002), pp. 354-65.
Journal of Information Science, Vol. 33, No. 5. (1 October 2007), pp. 531-550.
Journal of Librarianship and Information Science, Vol. 39, No. 1. (1 March 2007), pp. 27-40.
(15 March 2001)
(01 September 2000)
(01 September 2001)
(2005)
Library & Information Science Research, Vol. 28, No. 1. ( 2006), pp. 110-127.
Berliner Handreichungen zur Bibliotheks- und Informationswissenschaft, No. 188. (2006)
Technical Report - CSEG/11/98 (1998)
Online Review, Vol. 13, No. 5. (1989), pp. 407-424.
Information Processing & Management, Vol. 26, No. 5. (1990), pp. 575-591.
The Journal of Academic Librarianship, Vol. 33, No. 2. (March 2007), pp. 289-291.
(01 May 1993)
Commun. ACM, Vol. 49, No. 4. (April 2006), pp. 41-46.
Library & Information Science Research, Vol. 27, No. 3. ( 2005), pp. 377-404.
Library Management, Vol. 28, No. 1-2. (2007), pp. 53-61.
Reference Services Review, Vol. 31, No. 1. (2003), pp. 12-16.
Structural Change and Economic Dynamics, Vol. 17, No. 2. (June 2006), pp. 127-147.
Journal of the American Society for Information Science, Vol. 42, No. 5. (7 January 1999), pp. 361-371.
The Journal of Academic Librarianship, Vol. 22, Index Issue, No. 6. (1996), pp. 430-434.
(1988)
portal: Libraries and the Academy, Vol. 6, No. 1. (28 December 2006), pp. 47-58.
(28 July 2003)
Library Management, Vol. 27, No. 4-5. (April 2006), pp. 257-268.
The Internet and Higher Education, Vol. 2, No. 4. ( 2000), pp. 237-251.
(2003)
interactions, Vol. 10, No. 2. (2003), pp. 64-71.
International Journal of Information Management, Vol. 26, No. 4. (August 2006), pp. 263-266.