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M. L. Antipova,D. L. Gurina,E. G. Odintsova…. (2017). Formation of solvate structures by theortho-,meta-, andpara-isomers of hydroxybenzoic acid in supercritical fluid. Russian Journal of Physical Chemistry A, 91(4), 708–714. doi:10.1134/S003602441704001X 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research