%0 Journal Article %A Kopp, P. E. %T Abelian ergodic theorems for vector-valued functions %J Glasgow mathematical journal %D 1975 %P 57-60 %V 16 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500002512/ %R 10.1017/S0017089500002512 %F 10_1017_S0017089500002512