Benedetti, Irene, and Anna Martellotti. “A Further Generalization of Midpoint Convexity of Multimaps towards Common Fixed Point Theorems and Applications”. Topological Methods in Nonlinear Analysis 46, no. 1 (September 1, 2015): 93–111. Accessed July 22, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2015.039.