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 (Oct. 2025), 989–1000.