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Fu, Feifei; Xu, Chuanlong; Wang, Shimin . (2017). Flow characterization of high-pressure dense-phase pneumatic conveying of coal powder using multi-scale signal analysis. Particuology, (), S1674200117301104–. doi:10.1016/j.partic.2017.05.003 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research