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Kun Yu; Wenxian Li; Songrui Li; Jun Zhao. (2004). Mechanical properties and microstructure of aluminum alloy 2618 with Al3(Sc, Zr) phases. , 368(1-2), 88–93. doi:10.1016/j.msea.2003.09.092 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research