| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Towards Knowledge Portals: From Human Issues to Intelligent Agents | 978-1-4020-2053-7 (1-4020-2053-8) | 2004 | |
| Web Work: Information Seeking and Knowledge Work on the World Wide Web | 978-0-7923-6460-3 (0-7923-6460-0) | 2000 | Chun Wei Choo · D. Turnbull |