S. A. Inam, S. N. Ashraf, H. Hashim, S. W. Naim, M. A. Ansari, and A. R. Khanzada, “A DeepSpeech2-Inspired Convolutional Recurrent Framework for Low-Resource Urdu Speech Recognition”, VFAST trans. softw. eng., vol. 14, no. 2, pp. 81–95, Apr. 2026.