If multiple bibliography files are specified then all are used for referencing but only the first file with extension .json is to store records fetched from Wikidata. This way it is possible to get some references from Wikidata and use other sources as well for instance BibTeX files.
Pandoc option --bibliography overrides an existing metadata field and automatically enables filter pandoc-citeproc but in this case the file must exist in advance.
Each bibliography entry in HTML format includes the Wikidata item identifier in its id attribute (e.g. <div id="ref-Q55239420">...). This identifier can be used to add a link to the corresponding Wikidata item or to other services such as Scholia. The filter pwcite can inject snippets of JavaScript and CSS to add links from bibliography entries to Wikidata. To to do set document metadata field link-wikidata-references to true or to an URL prefix (e.g. https://tools.wmflabs.org/scholia/work/). This feature is based on Pandoc metadata variable include-after, so don’t set it via Pandoc command line option -A/--include-after-body and don’t remove the variable in custom HTML templates!
Each bibliography entry in HTML format includes the Wikidata item identifier in its id attribute (e.g. <div id="ref-Q55239420">...). This identifier can be used to add a link to the corresponding Wikidata item or to other services such as Scholia. The filter pwcite can inject snippets of JavaScript and CSS to add links from bibliography entries to Wikidata. To to do set document metadata field link-wikidata-references to true or to an URL prefix (e.g. https://tools.wmflabs.org/scholia/work/). This feature is based on Pandoc metadata variable include-after, so don’t set it via Pandoc command line option -A/--include-after-body and don’t remove the variable in custom HTML templates!
Bibliographic records fetched from Wikidata should be stored locally for several reasons: