Ignore 022z when linking to physical holdings
A journal has been accidentally misprinted another journal’s ISSN once and the wrong ISSN is included its bib record in 022z (I believe this description is correct according to MARC21 rules). CDI records of articles with the ISSN in question shows the wrong journal holdings with the ISSN in 022z, because CDI makes a Get It link by not only 022a but also 022z. Because of that, patrons cannot see the correct journal holdings. We think it is necessary to ignore 022z and see only 022a when linking physical holdings.

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