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Zhang, Jihua; Matta, Megan E.; Martinez, Henry; Hillmyer, Marc A. . (2013). Precision Vinyl Acetate/Ethylene (VAE) Copolymers by ROMP of Acetoxy-Substituted Cyclic Alkenes. Macromolecules, 46(7), 2535–2543. doi:10.1021/ma400092z 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research