N. S. Zuñiga-Peña, S. García-Nava, N. Hernández-Romero, and J. C. Seck-Tuoh-Mora, “Hybrid metaheuristic NNHGS algorithm for PID controller tuning in UAVs”, Int. Journal of COP and Infor., vol. 18, no. 1, pp. 50–59, Sep. 2026.