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Iwakura, Yoshio; Izawa, Shin-ichi . (1966). 2-Oxazolidones from Glycidyl Ether Reactions with Acid Amides. Bulletin of the Chemical Society of Japan, 39(11), 2490–2494. doi:10.1246/bcsj.39.2490 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research