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Joel E. Urbany, William O. Bearden and Dan C. Weilbaker. (1988). The Effect of Plausible and Exaggerated Reference Prices on Consumer Perceptions and Price Search. Journal of Consumer Research, 15(1), 95–110. doi:10.2307/2489175 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research