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Liu, Weizhen; Wu, Ting; Li, Zhuo; Hao, XiaoJun; Lu, Anxian . (2015). Preparation and characterization of ceramic substrate from tungsten mine tailings. Construction and Building Materials, 77(), 139–144. doi:10.1016/j.conbuildmat.2014.12.094 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research