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Ramanarayanan, T. A.; Petkovic-Luton, R. . (1981). A Study of High Temperature Carburization and Its Correlation with the Creep-Rupture Properties of a 30 Cr/30 Ni Austenitic Steel. Corrosion, 37(12), 712–721. doi:10.5006/1.3577562 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research