Abdullayev, I., E. Akhmetshin, E. Hajiyev, Z. Mamadiyarov, T. Khorolskaya, and L. Lydia. “A Financial Time Series Forecasting Model Using Quasi-Recurrent Neural Networks and the Crown Porcupine Optimizer for Stock Market Risk Prediction”. Engineering, Technology & Applied Science Research, vol. 15, no. 6, Dec. 2025, pp. 29035-40, doi:10.48084/etasr.13327.