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Neelakandan Vidhya Lakshmi; G.A. Suganya Josephine; Paramasivan T. Perumal. (2012). Novel route to spiropiperidines using N-methyl-4-piperidone, malononitrile and electrophiles. , 53(10), 1282–1286. doi:10.1016/j.tetlet.2011.12.129 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research