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Controllable subfields

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Find MARC controllable subfields in Connexion client.

 Note: Not all topical subdivisions have authority records.

Subfield name Subfield Controlled by ....
Topical subdivisions x Subdivision authority records (180)
Genre subdivisions v Subdivision authority records (185)
Chronological y Subdivision authority records (182)
Geographic subdivisions z When correct in authority records (151) or 781 fields in authority records