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Adrian J. Cassar Gheiti; Richard E. Downey; Damien P. Byrne; Diarmuid C. Molony; Kevin J. Mulhall. (2012). The 25 Most Cited Articles in Arthroscopic Orthopaedic Surgery. , 28(4), 0–564. doi:10.1016/j.arthro.2011.08.312 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research