\begin{thebibliography}{1}

\providecommand{\natexlab}[1]{#1}
\providecommand{\url}[1]{\texttt{#1}}
\providecommand{\urlprefix}{URL }
\providecommand{\eprint}[2][]{\url{#2}}

\bibitem[{Tronci}(1991)]{Tronci1991} Enrico Tronci. "Equational Programming in lambda-calculus." In \textit{Sixth Annual IEEE Symposium on Logic in Computer Science (LICS)}, 191--202. Amsterdam, The Netherlands: IEEE Computer Society, 1991. DOI: 10.1109/LICS.1991.151644.

\end{thebibliography}

