I'm trying to create links between records using the 773$w and 774$W subfields (control numbers).
I've tried to find out as much as I could from the perl scripts, but I'm not very familiar with the language. Does Koha do anything with these fields? If so, what does it do with them and how should I use them?
It's not implemented in Koha-MARC21, but there is something equivalent in Koha-UNIMARC. Take a look at /cataloguing/value_builder/unimarc_field_4XX.pl script. Your 773 field should have to be defined with a $9 subfield containing a link to related biblio record. The value builder script would have to populate 773 subfields after a search. Of course, during conversion process, after importing your records, you will have to loop through all biblio records, and for each one find a parent biblio record and populated 773$9... -- Frédéric DEMIANS http://www.tamil.fr/u/fdemians.html