Sakhnov, Kirill, Ekaterina Verteletskaya, and Boris Simak. “Partial Update Algorithms and Echo Delay Estimation”. Communications - Scientific letters of the University of Zilina 13, no. 2 (June 30, 2011): 14-19. Accessed April 6, 2026. http://journals.uniza.sk/index.php/communications/article/view/813.