%0 Journal Article %A V. Losert %A H. Rindler %T Conjugation-invariant means %J Colloquium Mathematicum %D 1987 %P 221-225 %V 51 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-51-1-221-225/ %R 10.4064/cm-51-1-221-225 %G fr %F 10_4064_cm_51_1_221_225