1. L. C. Becker, “Uniformly continuous L1 solutions of Volterra equations and global asymptotic stability,” Cubo, 11, No. 3, 1–24 (2009).
2. T. A. Burton, “Volterra integral and differential equations,” 2nd ed., Math. Sci. Eng., Vol. 202, Elsevier B. V., Amsterdam (2005).
3. T. Furumochi and S. Matsuoka, “Stability and boundedness in Volterra integrodifferential equations,” Mem. Fac. Sci. Eng. Shimane Univ. Ser. B Math. Sci., 32, 25–40 (1999).
4. J. R. Graef, C. Tunç, and S. ¸Sevgin, “Behavior of solutions of nonlinear functional Volterra integro-differential equations with multiple delays,” Dynam. Systems Appl., 25, No. 1-2, 39–46 (2016).
5. W. E. Mahfoud, “Boundedness properties in Volterra integro-differential systems,” Proc. Amer. Math. Soc., 100, No. 1, 37–45 (1987).