International Standard Serial Number
The ISSN (International Standard Serial Number), is the identifier of serials accepted internationally. Its use is defined by the standard technique ISO 3297:2007 - Information and documentation - International standard serial number (ISSN).
The ISSN is the unique identifier of international standard and has the function to identify the title of a serial (eg newspapers, magazines, annuals, etc.) in circulation, future (preprints) and closed serials, in which language is to meet or support (print, electronic means, etc..).