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Kumar, Sushil; Aswal, D. K. . (2020). [Materials Horizons: From Nature to Nanomaterials] Recent Advances in Thin Films || . , 10.1007/978-981-15-6116-0(), –. doi:10.1007/978-981-15-6116-0 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research