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Moriya, Kaznunari; Goto, Shigeaki; Akita, Tomoyuki; Kosaka, Hidemasa; Hotta, Yoshihiro; Nakakita, Kiyomi . (2016). SAE Technical Paper Series [SAE International SAE 2016 World Congress and Exhibition - (APR. 12, 2016)] SAE Technical Paper Series - Development of Free Piston Engine Linear Generator System Part3 -Novel Control Method of Linear Generator for to Improve Efficiency and Stability. , 1(), –. doi:10.4271/2016-01-0685 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research