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Arieta, FG; Sellars, CM . (1994). Activation volume and activation energy for deformation of Nb HSLA steels. Scripta Metallurgica et Materialia, 30(6), 707–712. doi:10.1016/0956-716X(94)90186-4 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research