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Hegemann, Karl-Rudolf; Guder, Ralf . (2019). Roheisenerzeugung (Hüttenwerks- und Gasreinigungsanlagen) || . , 10.1007/978-3-658-25406-3(), –. doi:10.1007/978-3-658-25406-3 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research