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Chopra, Sunil; Veeraiyan, Murali . (2017). Movie Rental Business: Blockbuster, Netflix, and Redbox. Kellogg School of Management Cases, 1(1), 1–21. doi:10.1108/case.kellogg.2016.000220 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research