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Taylor, J L; Schoenherr, C K; Grossberg, S E . (1980). High-yield interferon induction by 10-carboxymethyl-9-acridanone in mice and hamsters.. Antimicrobial Agents and Chemotherapy, 18(1), 20–26. doi:10.1128/AAC.18.1.20 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research