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Sánchez Egea, A.J.; Rodríguez, A.; Celentano, D.; Calleja, A.; López de Lacalle, L.N. . (2019). Joining metrics enhancement when combining FSW and ball-burnishing in a 2050 aluminium alloy. Surface and Coatings Technology, 367(), 327–335. doi:10.1016/j.surfcoat.2019.04.010 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research