method of design entry for many designers\footnote{The other half prefers VHDL,
a very different but -- of course -- equally powerful language.}.
-The Berkeley Logic Interchange Format (BLIF) is a simple file format for
+The Berkeley Logic Interchange Format (BLIF) \cite{blif} is a simple file format for
exchanging sequential logic between programs. It is easy to generate and
easy to parse and is therefore the preferred method of design entry for
many authors of logic synthesis tools.
Berkeley Logic Synthesis and Verification Group. ABC: A System for Sequential Synthesis and Verification. \\
\url{http://www.eecs.berkeley.edu/~alanmi/abc/}
+\bibitem{blif}
+Berkeley Logic Interchange Format (BLIF) \\
+\url{http://vlsi.colorado.edu/~vis/blif.ps}
+
\end{thebibliography}