| |
In Workshop on AI and Electronic Commerce (1999)
|
| |
|
| |
netWorker, Vol. 7, No. 3. (September 2003), pp. 18-23.
|
| |
Bibliotheksdienst, Vol. 36, No. 2002.
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
Commun. ACM, Vol. 30, No. 11. (November 1987), pp. 964-971.
|
| |
In CHI '06: CHI '06 extended abstracts on Human factors in computing systems (2006), pp. 36-39.
|
| |
|
| |
|
| |
|
| |
In JCDL '04: Proceedings of the 4th ACM/IEEE-CS joint conference on Digital libraries (2004), pp. 228-236.
|
| |
In Knowledge-Based Information Retrieval and Filtering from the Web (2003)
|
| |
Communications of the ACM, Vol. 40 (1997), pp. 59-62.
|
| |
In Knowledge Media Design. Theorie, Method, Praxis (2005), pp. 5-36.
|
| |
In Research and Advanced Technology for Digital Libraries (2003), pp. 13-23.
|
| |
In The Thirteenth Text Retrieval Conference (TREC 2004) (2004)
|
| |
|
| |
Communications of the ACM In Conference on Research \& Development on Information Retrieval (SIGIR) (2002)
|
| |
|
| |
Communications of the ACM, Vol. 40, No. 3. (1997), pp. 73-76.
|
| |
Communications of the ACM, Vol. 40 (1997), pp. 56-58.
|
| |
In Proceedings of ACM 1994 Conference on Computer Supported Cooperative Work (1994), pp. 175-186.
|
| |
In Knowledge Media Design. Theorie, Methodik, Praxis (2005), pp. 377-411.
|
| |
|
| |
|
| |
Commun. ACM, Vol. 49, No. 4. (2006), pp. 41-46.
|
| |
|
| |
|
| |
Communications of the ACM, Vol. 40, No. 3. (1997), pp. 77-87.
|
| |
Commun. of the ACM, Vol. 3 (1997), pp. 63-65.
|
| |
In Conference on Information and Knowledge Management (CIKM) (2004)
|
| |
IEEE Computer, Vol. 11 (2005), pp. 97-99.
|
| |
In Fifth DELOS Workshop (1997)
|
| |
In Knowledge Media Design. Theorie, Methodik, Praxis (2005), pp. 229-240.
|
| |
|
| |
|
| |
Journal of Documentation, Vol. 53 (1997), pp. 384-403.
|
| |
|
| |
IEEE Computer, Vol. 38 (2005), pp. 36-42.
|
| |
In SIGIR '04: Proceedings of the 27th annual international ACM SIGIR conference on Research and development in information retrieval (2004), pp. 584-585.
|
| |
|
| |
In Knowledge Media Design. Theorie, Methodik, Praxis (2005), pp. 335-344.
|
| |
|
| |
Communications of the ACM, Vol. 40 (1997), pp. 66-72.
|
| |
|