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Rusev, G.; Tonchev, A. P.; Schwengner, R.; Sun, C.; Tornow, W.; Wu, Y. K. . (2009). Multipole mixing ratios of transitions in. Physical Review C, 79(4), 047601–. doi:10.1103/PhysRevC.79.047601 

An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research