Hi everybody. I'm trying to use UNIMARC field 410 for the authority controlled Series name. In cataloguing everything seems to work properly: when I write the series name in field 410 subfield a, the voice in Authority is created and in the bibliographic record I can see the right koha link code in field 410 subfield 9, The problem is in searching: when I open bibliographic record the link between record and authority fails and when I go to search directly in authority I can see for that voice 0 biblios. So I tried to rebuild zebra indexes. The program rebuild_zebra.pl in verbose mode seems to recreate all indexes but still search doesn't work. The link between biblio and authorities for the other controlled fields works properly, only for 410 I found this problem. I'm using koha 3.18 Any suggestions? Thanks a lot. Salvatore Sanfilippo s.sanfilippo@adactanet.it