KengneE., and TayouS. J. “Stabilization of the Cauchy Problem for Integro-Differential Equations”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 57, no. 11, Nov. 2005, pp. 1571–1576, https://umj.imath.kiev.ua/index.php/umj/article/view/3709.