BROCKI, Łukasz, and Krzysztof MARASEK. “Deep Belief Neural Networks and Bidirectional Long-Short Term Memory Hybrid for Speech Recognition”. Archives of Acoustics 40, no. 2 (June 30, 2015): 191–195. Accessed March 4, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/1445.