Hassan, Ahmed. “Peak to Average Power Ratio Reduction of OFDM Signals Using Clipping and Iterative Processing Methods”. Al-Khwarizmi Engineering Journal 4, no. 4 (March 1, 2019): 82-90. Accessed November 30, 2019. http://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/611.