reftex-view-crossref-from-bibtex
reftex-view-crossref-from-bibtex is an interactive autoloaded Lisp function in `reftex-dcr.el
'.
(reftex-view-crossref-from-bibtex &optional ARG)
View location in a LaTeX document which cites the BibTeX entry at point.
Since BibTeX files can be used by many LaTeX documents, this function
prompts upon first use for a buffer in RefTeX mode. To reset this
link to a document, call the function with a prefix arg.
Calling this function several times find successive citation locations.