A. M.  Hengne, Kadu, B. S., Biradar, N. S., Chikate, R. C., and Rode, C. V., ?Transfer hydrogenation of biomass-derived levulinic acid to gamma-valerolactone over supported Ni catalysts?, RSC Advances, vol. 6, no. 64, pp. 59753-59761, 2016.