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Wolf, M.; Miller, L.; Donnelly, K. . (2000). Retrieval, Automaticity, Vocabulary Elaboration, Orthography (RAVE-O): A Comprehensive, Fluency-Based Reading Intervention Program. Journal of Learning Disabilities, 33(4), 375–386. doi:10.1177/002221940003300408 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research