\bibitem[label]{cite_key}
The \bibitem
command generates an entry labeled by label
.
If the label
argument is missing, a number is generated as the label, using
the enumiv
counter.
The cite_key
is a mnemonic consisting of any sequence of letters,
numbers, and punctuation symbols not containing a comma.
\bibitem
and \cite
are used
together much as \label
and
\ref
to produce a correspondence
between items in the Reference or Bibliography
(thebibliography
environment).
This command writes
an entry on the aux file containing cite_key
and the item's
label
.
When this aux file is read by the
\begin{document}
command, the item's
label
is associated with cite_key
,
causing the reference to cite_key
by a
\cite
command to produce the
associated label
.