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A. V. Arkhipov; M. V. Mishin; G. G. Sominski; I. V. Parygin. (2005). Hysteresis of pulsed characteristics of field emission from nanocarbon films. , 50(10), 1353–1359. doi:10.1134/1.2103285 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research