Ogbiyele, P., and P. Arawomo. “On Asymptotic Behavior of Solution to a Nonlinear Wave Equation With Space-Time Speed of Propagation and Damping Terms”. Proyecciones (Antofagasta, On Line), vol. 40, no. 6, Nov. 2021, pp. 1615-39, doi:10.22199/issn.0717-6279-4357-4415.