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Hwang, Jang-Yeon; Myung, Seung-Taek; Sun, Yang-Kook . (2017). Sodium-ion batteries: present and future. Chem. Soc. Rev., (), 10.1039.C6CS00776Gā€“. doi:10.1039/c6cs00776g 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research