ISSN and DOI - ISJ Editors Website
www.isj-editors.org/?page_id=486ISSNs are not assigned to one-off publications, magazine specials, newspaper specials or web sites. Displaying the ISSN in print The number should be printed thus: ISSN 0000-0000. That is, it should be preceded by the initials ISSN followed by a single space, then the first four digits, then a hyphen, then the last four digits.
What is an ISSN? | ISSN
https://www.issn.org/understanding-the-issn/what-is-an-issnThe ISSN takes the form of the acronym ISSN followed by two groups of four digits, separated by a hyphen. The eighth digit is a check digit calculated according to a modulus 11 algorithm on the basis of the 7 preceding digits; this eighth control digit may be an “X” if the result of the computing is equal to “10”, in order to avoid any ambiguity.