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\bibitem{Liu_etal2019} {\textquotedblleft}\textit{Hydrogenation of Carbon Dioxide to Value-Added Chemicals by Heterogeneous Catalysis and Plasma Catalysis}{\textquotedblright}. Liu M, Yi Y, Wang L, Guo H, Bogaerts A, Catalysts \textbf{9}, 275 (2019).   http://doi.org/10.3390/catal9030275

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