Jarina, Roman, and Michal Kuba. “Speech Recognition Using Hidden Markov Model With Low Redundancy in the Observation Space”. Communications - Scientific letters of the University of Zilina 6, no. 4 (December 31, 2004): 17-21. Accessed April 6, 2026. http://journals.uniza.sk/index.php/communications/article/view/1315.