Add citation_journal_title, citation_volume and citation_issue tags to head metatags

[sh-habibi]

Add missing <meta name="citation_journal_title" ...>, <meta name=" citation_issue" ...>, <meta name="citation_volume" ...> fields to the XHTML head section for journal article items. These are used by search engines like google scholar to index journal articles.

References

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Description

Short summary of changes (1-2 sentences).

Instructions for Reviewers

Adds meta name="citation_journal_title" ...>, <meta name=" citation_issue" ...>, <meta name="citation_volume" ...> tags to the section journal article item pages containing a journal title, volume and issue number in the dc.relation.ispartof, dc.citation.volume, dc.citation.issue metadata fields .

List of changes in this PR:

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• Second, ...

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