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Shawen, Scott B.; Keeling, John J.; Branstetter, Joanna; Kirk, Kevin L.; Ficke, James R.. (2010). The Mangled Foot and Leg: Salvage Versus Amputation. , 15(1), 63–75. doi:10.1016/j.fcl.2009.11.005 

An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research