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Rosenblum, L. Penny; Herzberg, Tina S. . (2015). Braille and Tactile Graphics: Youths with Visual Impairments Share Their Experiences. Journal of Visual Impairment & Blindness, 109(3), 173–184. doi:10.1177/0145482X1510900302 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research