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Kitchen, Douglas B.; Decornez, Hélène; Furr, John R.; Bajorath, Jürgen. (2004). Docking and scoring in virtual screening for drug discovery: methods and applications. , 3(11), 935–949. doi:10.1038/nrd1549 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research