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A.K. Eriksson; T. Tran; S. Saxin; G. Svensson; P. Svedlindh; S.-G. Eriksson; C.S. Knee. (2009). Effects of A-site substitution on the structure and magnetic properties of Bi0.15Sr0.85−yAeyCo1−xFexO3−δ perovskites. , 11(11), 1945–1954. doi:10.1016/j.solidstatesciences.2009.07.008 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research