Common fixed points for multimaps in metric spaces. Espínola, Rafa; Hussain, Nawab — 2010 Fixed Point Theory and Applications [electronic only]
Fixed points of single- and set-valued mappings in uniformly convex metric spaces with no metric convexity. Espínola, Rafa; Fernández-León, Aurora; Pia̧tek, Bożena — 2010 Fixed Point Theory and Applications [electronic only]