\begin{thebibliography}{CLRS09}

\bibitem[CLRS09]{CLRS09}
T.~H. Cormen, C.~E. Leiserson, R.~L. Rivest, and C.~Stein.
\newblock {\em Introduction to Algorithms}.
\newblock The MIT Press, Cambridge, MA, 3rd edition, 2009.

\end{thebibliography}