Belaid, Malik, Abdelouaheb Ardjouni, and Ahcene Djoudi. “Asymptotic Behavior of Linear Advanced Dynamic Equations on Time Scales.”. Proyecciones (Antofagasta, On line) 38, no. 1 (February 26, 2019): 97-110. Accessed February 27, 2021. https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/2379.