Tunç, Cemil, and Sizar Abid Mohammed. “New Results on Exponential Stability of Nonlinear Volterra Integro-Differential Equations With Constant Time-Lag.”. Proyecciones (Antofagasta, On line) 36, no. 4 (1): 615-639. Accessed March 29, 2024. https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/2539.