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Ploetz, Sabine Gisela; Kellerer, Christina; Kellerer, Daniel; Ring, Johannes . (2016). „Jetzt auch Warzen an der Hand“. MMW - Fortschritte der Medizin, 158(18), 80–85. doi:10.1007/s15006-016-8849-x 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research