Bahig, H. M., A. Alghadhban, M. A. Mahdi, K. A. Alutaibi, and H. M. Bahig. “Speeding up the Multiplication Algorithm for Large Integers”. Engineering, Technology & Applied Science Research, vol. 10, no. 6, Dec. 2020, pp. 6533-41, doi:10.48084/etasr.3932.