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Michael Buback; Robert G. Gilbert; Robin A. Hutchinson; Bert Klumperman; Frank-Dieter Kuchta; Bart G. Manders; Kenneth F. O'Driscoll; Gregory T. Russell; Johannes Schweer. (1995). Critically evaluated rate coefficients for free-radical polymerization, 1. Propagation rate coefficient for styrene. , 196(10), 3267–3280. doi:10.1002/macp.1995.021961016 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research