* The \cite{bibkey} command will place the full bibliography entry in a
sidenote next to the citation. Note that cannot currently use
\cite{Author01,Author02}, but must instead use
\cite{Author01}\cite{Author02}.
git-svn-id: https://tufte-latex.googlecode.com/svn/trunk@21 516e2f36-ce3a-0410-bea4-1d4a03f5df72