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Kyu Ho Chae; Hee Bong Song. (1998). Crosslinking reaction of glycidyl methacrylate copolymers containing oxime-urethane groups using photogenerated pendant amines. , 40(6), 667–674. doi:10.1007/s002890050306 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research