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Yao, Changfeng; Wang, Ting; Xiao, Wei; Huang, Xinchun; Ren, Junxue . (2014). Experimental study on grinding force and grinding temperature of Aermet 100 steel in surface grinding. Journal of Materials Processing Technology, 214(11), 2191–2199. doi:10.1016/j.jmatprotec.2014.04.013 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research