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Xia, HaiYing; Xiao, YuFang; Song, ShuXiang; Li, HaiSheng . (2020). Quantum circuit design of approximate median filtering with noise tolerance threshold. Quantum Information Processing, 19(6), 183–. doi:10.1007/s11128-020-02678-6 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research