RefTeX is a specialized package for support of labels,
references, citations, and the index in LaTeX. RefTeX
wraps itself round 4 LaTeX macros: \label,
\ref, \cite, and \index.
Using these macros usually requires looking up different parts of
the document and searching through BibTeX database files.
RefTeX automates these time–consuming tasks almost
entirely. It also provides functions to display the structure of
a document and to move around in this structure quickly.
See Imprint, for information about who to contact for help, bug reports or suggestions.