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\bibitem{DeSchouwer_etal2015} {\textquotedblleft}\textit{Pd-catalyzed decarboxylation of glutamic acid and pyroglutamic acid to bio-based 2-pyrrolidone}{\textquotedblright}. De Schouwer F, Claes L, Claes N, Bals S, Degr{\`e}ve J, De Vos DE, Green chemistry : cutting-edge research for a greener sustainable future \textbf{17}, 2263 (2015).   http://doi.org/10.1039/c4gc02194k

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