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023 Cluster ISSN (R)

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Find the field definition and scope, indicators, subfield codes, and guidelines for applying content designations for field 023.

Indicators and subfield codes

First Indicator

Type of Cluster ISSN

0          ISSN-L

1          ISSN-H

Second Indicator

Undefined

blank          Undefined

Subfield Codes

‡a        Cluster ISSN (NR)

‡y        Incorrect Cluster ISSN (R)

‡z        Canceled Cluster ISSN (R)

‡0        Authority record control number or standard number (NR)

‡1        Real World Object URI (R)

‡2        Source (R)

‡6        Linkage (NR)

‡8        Field link and sequence number (R)

 

Field definition and scope

This field is to to record the Cluster ISSN, a mechanism first defined in ISO 3297:2020 to provide for the identification of specific groups of ISSN (International Standard Serial Number), such as the various medium editions of a continuing resource, or serials related by preceding and succeeding title relationships.

Guidelines for applying content designations

Indicators

First Indicator - Type of Cluster ISSN

0 - ISSN-L

Groups the various medium versions of a continuing resource. ISSN-L may be generated for display.

1 - ISSN-H

Groups the serials published under successive preceding and succeeding titles of the serial. ISSN-H may be generated for display.

Second Indicator - Undefined

blank - Undefined

Subfields

‡a - Cluster ISSN

As designated by the ISSN International Centre, Cluster ISSNs group together resources with specific relationships to each other such as medium versions (ISSN-L), and clusters such as earlier and later titles (ISSN-H). The appropriate prefix for the ISSN type denoted by the first indicator value may be generated for display, for value 0: ISSN-L; for value 1: ISSN-H.

023    0#$a0028-0836$20

023    0#$a1063-3928$20
023    1#$a9999-9999$20
             [ISSN-H (history ISSN)]

‡y - Incorrect Cluster ISSN

Cluster ISSN that has been incorrectly associated with the continuing resource or incorrectly formatted on the resource. Each incorrect Cluster ISSN is contained in a separate $y.

E.g., ISSN-L (incorrect) may be generated for display.

           023    0#$a0151-4105$20$y0048-7996

‡z - Canceled Cluster ISSN

Cluster ISSN that has been associated with the resource but subsequently canceled, often because a duplicate Cluster ISSN was assigned. Each canceled Cluster ISSN is contained in a separate $z.

E.g., ISSN-L (canceled) may be generated for display.

           023    0#$a 1043-0253$20$z0147-8745

‡0 - Authority record control number or standard number

A URI for the Cluster ISSN in subfield $a.

See Control Subfields for more information about subfield ‡0.

‡1 - Real World Object URI

See Control Subfields for more information about subfield ‡1.

‡2 - Source

ISSN Center responsible for assigning and maintaining Cluster ISSNs and related data.

Code from: ISSN Manual, Annex 3: List of ISSN Centre codes [PDF, 199 KB].

‡6 - Linkage

See Control Subfields for more information about subfield ‡6.

‡8 - Field link and sequence number

See Control Subfields for more information about subfield ‡8.