Shakoor А. ., M. . Samar, T. . Athar, and M. . Saddique, “Results for retarded nonlinear integral inequalities with mixed powers and their applications to delay integro-differential equations”, Ukr. Mat. Zhurn., vol. 75, no. 3, pp. 416–429, Apr. 2023, doi: 10.37863/umzh.v75i3.6903.