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Carla Barbatti; José Garcia; Pedro Brito; Anke Rita Pyzalla. (2009). Influence of WC replacement by TiC and (Ta,Nb)C on the oxidation resistance of Co-based cemented carbides. , 27(4), 768–776. doi:10.1016/j.ijrmhm.2008.12.009 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research