BibTeX is a program that simplifies the construction of bibliography files
for documents written with LaTeX.  BibTeX reads the .AUX file written by
LaTeX for a given document, and a bibliographic database stored in one or
more .BIB files, and produces a .BBL file with exactly those references
used in the document, in the desired format for input to LaTeX.

To run BibTeX, use the command

    .r bibtex;filename

where "filename" is the name of your LaTeX input file without the extension
(also the name of the .AUX file, therefore).  If you forget or mistype the
name, BibTeX will ask you again until it finds the file.  BibTeX will locate
the .BIB files based on information it finds in the .AUX file.

After you create a document and a bibliographic database, the following
steps are necessary to ensure correct output:

  1. Run LaTeX to produce a .AUX file with the correct references.
  2. Run BibTeX to produce a .BBL file for the document.
  3. Run LaTeX to read the .BBL file, and produce a new .AUX file.
  4. Run LaTeX to read the final, correct .AUX file.

Normally, you will be running LaTeX periodically as you modify your
document, so as long as you run BibTeX after the last change to the
references, and run LaTeX at least twice after that, no further runs of
either program will be necessary.