E. P. Mera Otoya, F. G. Tello Canchingre, and W. I. Mendoza Proaño, “Low-cost automation for improving reliability in institutional hydropneumatic systems: a case study in Esmeraldas, Ecuador”, EKSIGMA, vol. 1, no. 1, pp. 34–49, Jan. 2025, Accessed: Apr. 16, 2026. [Online]. Available: https://eksigma.com/index.php/principal/article/view/23