Zguaid, Khalid, and Fatima Zahrae El Alaoui. 2023. “On the Regional Boundary Observability of Semilinear Time-Fractional Systems With Caputo Derivative”. An International Journal of Optimization and Control: Theories & Applications (IJOCTA) 13 (2):161-70. https://doi.org/10.11121/ijocta.2023.1286.