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Zhou Tao; Wang Zenghui; Yang Ruichang. (2005). Optimization and improvement of PM2.5 thermophoretic deposition efficiency in turbulent gas flowing over tube surfaces. , 289(1), 36–41. doi:10.1016/j.jcis.2005.03.032 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research