CHAILI, Amina, et al. “Decay Rate of Solutions to the Cauchy Problem for a Coupled System of a Viscoelastic Wave Equations With a Strong Delay in Rⁿ”. Studia Universitatis Babeș-Bolyai Mathematica, vol. 68, no. 4, Dec. 2023, pp. 895-0, doi:10.24193/subbmath.2023.4.16.