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Li, Dong; Zhou, Huiling; Lam, Kin-Man . (2015). High-resolution face verification using pore-scale facial features. IEEE Transactions on Image Processing, 24(8), 2317–2327. doi:10.1109/TIP.2015.2412374 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research