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\begin{frame}{References}
    % Beamer does not support BibTeX so references must be inserted manually as below
    \footnotesize{
        \begin{thebibliography}{99}
            \bibitem[mason]{p1} Mason, Roberts (2018)
            \newblock  Price Elasticity of Supply and Productivity: An Analysis of Natural Gas Wells in Wyoming
            \newblock \emph{The Energy Journal} 39(S1), 79 -- 101.
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		\bibitem[gilbert]{p2} Gilbert, Gavin (2020)
            \newblock  Drill-Bit Parity: Supply-Side Links in Oil and Gas Markets
            \newblock \emph{Journal of the Association of Environmental and Resource Economists} 7(S4), 619 -- 658.
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    \bibitem[loos]{p3} Loos, Gebben et al. (2022)
            \newblock Individual to collective adaptation through incremental change in Colorado groundwater governance 
            \newblock \emph{Frontiers in Environmental Science} (Sec. Environmental Economics and Management ) V10


        \end{thebibliography}
    }
\end{frame}

