. Slavica Ivelić Bradanović, “Generalizations of Sherman’s inequality via Fink’s identity and Green’s function”, Ukr. Mat. Zhurn., vol. 70, no. 8, pp. 1033–1043, Jul. 2023, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/6005