◂
sci
hub

to open science
Gao, Song; Ma, Bao-Qing; Yi, Tao; Wang, Zhe-Ming; Liao, Chun-Sheng; Yan, Chun-Hua; Xu, Guang-Xian . (1999). Spin Frustrated Double Chain {[Fe(PZDA)H <sub/>2</sub> O) <sub/>2</sub> ]·2H <sub/>2</sub> O} <sub/>n</sub> (H <sub/>2</sub> PZDA=2,3-Pyrazinedicarboxylic Acid). Chemistry Letters, 28(8), 773–774. doi:10.1246/cl.1999.773 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research