bibtex-url is an interactive compiled Lisp function in `bibtex.el'.

(bibtex-url &optional POS NO-BROWSE)

Browse a URL for the BibTeX entry at point.
Optional POS is the location of the BibTeX entry.
The URL is generated using the schemes defined in `bibtex-generate-url-list'
(see there). If multiple schemes match for this entry, or the same scheme
matches more than once, use the one for which the first step's match is the
closest to POS. The URL is passed to `browse-url' unless NO-BROWSE is t.
Return the URL or nil if none can be generated.