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C.H. Hu; Y. Yang; Z.Z. Zhu. (2009). Structural and electronic properties of lithium ion battery anode material LiMN (M = Ni, Co, Cu). , 11(11), 1898–1902. doi:10.1016/j.solidstatesciences.2009.07.020 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research