| |
| 1994 | ||
|---|---|---|
| 3 | Janet Mitchell, Per Halberg: End-User Searching and Document Ordering: The Experience with the OCLC FirstSearch Service. Essen Symposium 1994: 243-254 | |
| 1993 | ||
| 2 | Janet Mitchell: Resource Sharing through OCLC: A Comprehensive Approach. Essen Symposium 1993: 13-22 | |
| 1988 | ||
| 1 | Janet Mitchell: Electronic Publishing Developments and Opportunities from OCLC. Essen Symposium 1988: 29-44 | |
| 1 | Per Halberg | [3] |