@article{MOMA_1985__100_178242,
     author = {Stefan Krasa},
     title = {Non {Uniqueness} of {Invariant} {Means} for {Amenable} {Group} {Actions.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {121--126},
     publisher = {mathdoc},
     volume = {100},
     year = {1985},
     zbl = {0571.43002},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1985__100_178242/}
}