Tapia-Herrera, R., Hernádez-Cortés, T., Rojas-Ruiz, A. ., Jaime-Fonseca, B. A. and Meda-Campaña, J. A. (2025) “Tracking of discrete-time unmodeled reference signals in robotic manipulators using output regulation theory and high-gain observers”, IEEE Latin America Transactions, 23(11), pp. 989–1000. Available at: https://latamt.ieeer9.org/index.php/transactions/article/view/9931 (Accessed: 18 June 2026).