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Gao, Xin; Zhou, Qu; Wang, Jingxuan; Xu, Lingna; Zeng, Wen . (2020). Adsorption of SO2 molecule on Ni-doped and Pd-doped graphene based on first-principle study. Applied Surface Science, 517(), 146180–. doi:10.1016/j.apsusc.2020.146180 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research