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Wolfowicz, G.; Whiteley, S. J.; Awschalom, D. D. . (2018). Electrometry by optical charge conversion of deep defects in 4H-SiC. Proceedings of the National Academy of Sciences, (), 201806998–. doi:10.1073/pnas.1806998115 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research