Generalizations of Sherman's inequality via Fink's identity and Green's function

Slavica Ivelić Bradanović,. “Generalizations of Sherman’s Inequality via Fink’s Identity and Green’s Function”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 70, no. 8, July 2023, pp. 1033-4, https://umj.imath.kiev.ua/index.php/umj/article/view/6005.