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Jin, Youngeup; Song, Suhee; Park, Sung Heum; Kim, Jinwoo; Woo, Han Young; Lee, Kwanghee; Suh, Hongsuk. (2008). Novel Electroluminescent PPV Copolymers Containing Si-phenyl and Difluorovinylene Units. , 40(10), 965–970. doi:10.1295/polymj.pj2008085 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research