G, Jayagopi, and Sumathi C B. “An Efficient Multi-Class ECG Arrhythmia Classification Framework Using Hybrid Tetrolet Based Energy and Entropy Features”. INTERNATIONAL JOURNAL OF ADVANCES IN SIGNAL AND IMAGE SCIENCES (March 20, 2026): 1382–1396. Accessed October 24, 2026. https://xlescience.org/index.php/IJASIS/article/view/1587.