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Wang, Jinyao; Liu, Jiefeng; Yu, Xiao; Zhang, Wenxiang; Zhang, Guangyu; Liu, Mengyuan; Shen, Jian; Yang, Chaohe; Jin, Xin . (2020). Non-noble metal catalysts for transfer hydrogenation of levulinic acid: The role of surface morphology and acid-base pairs. Materials Today Energy, 18(), 100501–. doi:10.1016/j.mtener.2020.100501 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research