ISSN

The ISSN coding scheme is EAN13, with the first three digits being 977, 7 digits showing the ISSN number of the periodical (without the ISSN check digit), and 2 spare digits (used in the UK to indicate price code changes). The final digit is the EAN calculated check digit.

 

  ISSN

 

ISSN with 2 and 5 digit supplementaries are supported by some dLSoft products. The supplementary characters must be separated from the ISSN numbers with a / character.

 

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