%0 Journal Article %A Hadi Khatibzadeh %A Hadi Pouladi   %T A Mean Ergodic Theorem for Affine Nonexpansive Mappings in Nonpositive Curvature Metric Spaces %J Analele Universităţii "Ovidius" Constanţa Seria Matematică %D 2021 %V XXIX %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ASUO_2021_XXIX_1_a11/ %F ASUO_2021_XXIX_1_a11