@article{SF_1972__4_133905,
     author = {S.T.L. Choy},
     title = {Primitive idempotent measures on locally compact semigroups.},
     journal = {Semigroup forum},
     pages = {267--273},
     publisher = {mathdoc},
     volume = {4},
     year = {1972},
     zbl = {0253.43002},
     url = {http://geodesic.mathdoc.fr/item/SF_1972__4_133905/}
}