@article{CM_1969__21_2_113_0,
     author = {Larsen, R.},
     title = {Measures which act almost invariantly},
     journal = {Compositio Mathematica},
     pages = {113--121},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {21},
     number = {2},
     year = {1969},
     mrnumber = {435727},
     zbl = {0176.00803},
     language = {en},
     url = {http://www.numdam.org/item/CM_1969__21_2_113_0/}
}