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Yuan, Wei; Deng, Pan; Taleb, Tarik; Wan, Jiafu; Bi, Chaofan . (2015). An Unlicensed Taxi Identification Model Based on Big Data Analysis. IEEE Transactions on Intelligent Transportation Systems, (), 1–11. doi:10.1109/TITS.2015.2498180 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research