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Bing, Jueming; Huang, Shujuan; Ho-Baillie, Anita W. Y. . (2020). A Review on Halide Perovskite Film Formation by Sequential Solution Processing for Solar Cell Applications. Energy Technology, 8(4), 2070043–. doi:10.1002/ente.202070043 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research