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Merizalde, Yuri; Hernández-Callejo, Luis; Duque-Pérez, Oscar; Alonso-Gómez, Víctor . (2020). Diagnosis of wind turbine faults using generator current signature analysis: a review. Journal of Quality in Maintenance Engineering, 26(3), 431–458. doi:10.1108/jqme-02-2019-0020 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research