Louise: We've been adding multiple ISSN's to our records for almost 2 years, because it is unclear which ISSN a bibliographic database or reference will use, even if both are included in a citation. If you have a CSA citation, for instance, a search back to the OPAC will pull a record no matter which ISSN is referenced. This is also true of other databases that support ISSN searches of local OPACS. To insure multiple ISSN's were searchable we had to change set-up options for our OPAC and have the issn fields re-indexed. Chuck Hamaker UNC Charlotte. -----Original Message----- From: Louise Cole To: [log in to unmask] Sent: 6/10/03 5:08 AM Subject: Multiple ISSNs Dear all, An old topic but a relevant one for libraries which are now cataloguing in MARC21 format. Now that it is acceptable to use multiple ISSNs, have any sites started doing this (if you catalogue your print and e-journals as separate records, this will not apply), and if so, how do you differentiate between which is the print ISSN and which is the e-ISSN? What about titles such as the BMJ which seems to have at least four ISSNs (and where it is not clear which is the main one)? And titles such as the American Journal of Physiology where, because of the way the print journal is set out (numerous parts in one issue, all with different ISSNs), there has to be one record for checking-in? This has always been an issue when linking in to Library catalogues from a database such as Medline. And finally, what about using multiple ISSNs with link resolvers / OpenURL? Have those of you who are using SFX, Webbridge etc. found the lack of multiple ISSNs in your catalogue to be an issue? Thanks Louise Louise Cole Electronic Resources Team Leader Health Sciences Library University of Leeds Leeds LS2 9JT e-mail [log in to unmask] tel 0113 343 5502 fax 0113 343 4381