%0 Journal Article %A Larsen, R. %T Measures which act almost invariantly %J Compositio Mathematica %D 1969 %P 113-121 %V 21 %N 2 %I Wolters-Noordhoff Publishing %U http://archive.numdam.org/item/CM_1969__21_2_113_0/ %G en %F CM_1969__21_2_113_0