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Tang, Jiexiong; Folkesson, John; Jensfelt, Patric . (2018). Geometric Correspondence Network for Camera Motion Estimation. IEEE Robotics and Automation Letters, 3(2), 1010–1017. doi:10.1109/LRA.2018.2794624 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research