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Gui, Ben; Qiao, Yu; Wan, Dan; Liu, Shuai; Han, Zainan; Yao, Hong; Xu, Minghou . (2013). Nascent tar formation during polyvinylchloride (PVC) pyrolysis. Proceedings of the Combustion Institute, 34(2), 2321–2329. doi:10.1016/j.proci.2012.08.013 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research