Hi, I'm trying to switch our old ILS to Koha but I'm stuck with how I'll import Serials in the system. The information I have in the old database is rather sparse but I have a value I don't know how to map. I have a publication date, which is normally linked to one item notice (and not a serial notice). The problem is there is no mapping in the koha standard (sample?) UNIMARC definition. Moreover, I don't know which koha field to map to? I've found "timestamp" and "dateaccessioned" but do not know which one to choose and if i'm in the right direction. I plan to add a 995$w field to map to the koha field. I have to admit i'm computer scientist only ... and that the person who manage the old ILS is not a librarian, so I'm on my own to handle the issues. Hope you can help! Thanks a lot! Regards, Frédéric