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Li, Hong-Xia; Wang, Qiang; Jiang, Jia-Wei; Lei, Hong; Guo, Zhan-Cheng; He, Ji-Cheng . (2016). Analysis of Factors Affecting Free Surface Vortex Formation during Steel Teeming. ISIJ International, 56(1), 94–102. doi:10.2355/isijinternational.isijint-2015-096 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research