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Chen, Zhengjian; Zhou, Yun; Ma, Xiaoyun; Shen, Hujun; Zhang, Shiguo . (2017). N, S-Codoped Mesoporous Carbon Derived from Protic Salt for Oxygen Reduction Reaction. Journal of The Electrochemical Society, 164(2), H32–H36. doi:10.1149/2.0471702jes 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research