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Rao, H.I.K.; Farhang-Boroujeny, B.. (2010). Analysis of the Stereophonic LMS/Newton Algorithm and Impact of Signal Nonlinearity on Its Convergence Behavior. , 58(12), 6080–6092. doi:10.1109/tsp.2010.2074198 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research