BENEDETTI, Irene and MARTELLOTTI, Anna. A further generalization of midpoint convexity of multimaps towards common fixed point theorems and applications. Topological Methods in Nonlinear Analysis. Online. 1 September 2015. Vol. 46, no. 1, pp. 93 - 111. [Accessed 22 July 2024]. DOI 10.12775/TMNA.2015.039.