Liao, Menglan, and Zhong Tan. “Asymptotic Stability for a Viscoelastic Equation With the Time-Varying Delay”. Mathematical Modelling and Analysis 28, no. 1 (January 19, 2023): 23–41. Accessed February 6, 2025. https://transport.vgtu.lt/index.php/MMA/article/view/16160.