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Rakhmanov, E. V.; Akopyan, A. V.; Tarakanova, A. V.; Lesin, S. V.; Vinokurov, V. A.; Glotov, A. P.; Movsesyan, A. K.; Anisimov, A. V. . (2017). Two-stage oxidative desulfurization of material containing oil sludge. Theoretical Foundations of Chemical Engineering, 51(5), 830–834. doi:10.1134/S0040579517050190 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research