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Yu Luo; Hao-Min Liu; Ming-Bo Su; Li Sheng; Yu-Bo Zhou; Jia Li; Wei Lu. (2011). Synthesis and biological evaluation of piperamide analogues as HDAC inhibitors. , 21(16), 4844–4846. doi:10.1016/j.bmcl.2011.06.046 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research