What identifiers of titles does CELUS recognise?

Modified on Tue, 28 May 2024 at 01:50 PM

CELUS works with the following identifiers of titles: 

1. ISSN (International Standard Serial Number)

Definition: The ISSN is an eight-digit number used to uniquely identify serial publications, such as journals, magazines, and newspapers.

Format: The ISSN is usually formatted as two groups of four digits, separated by a hyphen (e.g., ISSN 1234-5678).

Usage in CELUS: CELUS uses ISSNs to identify and track serial publications. This ensures that usage data for journals and other periodicals is accurately recorded and reported.

2. eISSN (Electronic International Standard Serial Number)

Definition: The eISSN is an eight-digit number specifically assigned to the electronic versions of serial publications. Like the ISSN, it uniquely identifies digital serial publications.

Format: The eISSN is formatted similarly to the ISSN, with two groups of four digits separated by a hyphen (e.g., eISSN 8765-4321).

Usage in CELUS: CELUS recognizes eISSNs to manage and track the usage of electronic serial publications. This ensures that digital versions of journals and other periodicals are accurately monitored alongside their print counterparts.

3. ISBN (International Standard Book Number)

Definition: The ISBN is a unique identifier for books, designed to simplify the distribution and purchase of books worldwide. It can be either 10 or 13 digits long.


  • ISBN-10: A 10-digit number (e.g., ISBN 0-306-40615-2)
  • ISBN-13: A 13-digit number (e.g., ISBN 978-3-16-148410-0)

Usage in CELUS: CELUS recognizes ISBNs to track the usage of books. 

4. Proprietary IDs

Definition: Proprietary IDs are unique identifiers assigned by specific publishers or platforms. These IDs are used internally by publishers to manage their content.

Format: The format of proprietary IDs varies depending on the publisher or platform. Unlike ISSNs and ISBNs, there is no standardized format.

Usage in CELUS: CELUS can recognize and utilize proprietary IDs for tracking usage data. This flexibility allows CELUS to manage a wide range of e-resources, even if they do not have standard ISSN or ISBN identifiers.

How CELUS Uses Identifiers

CELUS leverages these identifiers to ensure precise and efficient management of e-resources. When usage data is imported into CELUS, the software automatically recognizes and associates the data with the correct titles using these identifiers. This process helps maintain accurate records and provides librarians with reliable usage statistics.

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