validate_issn

[<code>character(1)</code>]
The ISSN of a journal

issn

International Standard Serial Numbers (ISSNs) have a specific structure and
this function checks that the provided ISSN is valid. For more information
please go to
<a href="https://en.wikipedia.org/wiki/International_Standard_Serial_Number">https://en.wikipedia.org/wiki/International_Standard_Serial_Number</a>

internal

Fetches information from the 'SHERPA/RoMEO' API
<http://www.sherpa.ac.uk/romeo/apimanual.php> which indexes policies of
journal regarding the archival of scientific manuscripts before and/or after
peer-review as well as formatted manuscripts.

Matthias Greni

rromeo

Access Publisher Copyright & Self-Archiving Policies via the
'SHERPA/RoMEO' API

Matthias Greni<c3><a9>

Hugo Gruson

validate_issn function

International Standard Serial Numbers (ISSNs) have a specific structure and
this function checks that the provided ISSN is valid. For more information
please go to
<a href='https://en.wikipedia.org/wiki/International_Standard_Serial_Number'>https://en.wikipedia.org/wiki/International_Standard_Serial_Number</a>

validate_issn: Checks validity of the ISSN

Description

Usage

Arguments

Value