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J.P. Vigneron; I. Jacquet. (1976). Reduction asymetrique de cetones par des alcoxyaluminohydrures chiraux prepares a partir de l'ephedrine et divers alcools ou phenols achiraux. , 32(8), 939–944. doi:10.1016/0040-4020(76)85053-3 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research