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Öpöz, Tahsin T.; Yaşar, Hamidullah; Ekmekci, Nihal; Ekmekci, Bülent . (2018). Particle migration and surface modification on Ti6Al4V in SiC powder mixed electrical discharge machining. Journal of Manufacturing Processes, 31(), 744–758. doi:10.1016/j.jmapro.2018.01.002 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research