** RefTeX mode
RefTeX mode is a new minor mode with special support for \label, \ref
and \cite macros in LaTeX documents. RefTeX distinguishes labels of
different environments (equation, figure, ...) and has full support for
multifile documents. To use it, select a buffer with a LaTeX document and
turn the mode on with M-x reftex-mode. Here are the main user commands:
C-c ( reftex-label Creates a label semi-automatically. RefTeX is context sensitive and knows which kind of label is needed.
C-c ) reftex-reference Offers in a menu all labels in the document, along with context of the label definition. The selected label is referenced as \ref{LABEL}.
C-c [ reftex-citation Prompts for a regular expression and displays a list of matching BibTeX database entries. The selected entry is cited with a \cite{KEY} macro.
C-c & reftex-view-crossref Views the cross reference of a \ref or \cite command near point.
C-c = reftex-toc Shows a table of contents of the (multifile) document. From there you can quickly jump to every section.
Under X, RefTeX installs a "Ref" menu in the menu bar, with additional commands. Press `?' to get help when a prompt mentions this feature. Full documentation and customization examples are in the file reftex.el. You can use the finder to view the file documentation: C-h p --> tex --> reftex.el