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Jiang, Yujiao; Lü, Guangshi; Wang, Zhiwei . (2020). Exponential sums with multiplicative coefficients without the Ramanujan conjecture. Mathematische Annalen, (), –. doi:10.1007/s00208-020-02108-z 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research