@article{SF_1972__5_133924,
     author = {C. Dunkl and D. Ramirez},
     title = {Locally compact subgroups of the spectrum of the measure algebra {III.}},
     journal = {Semigroup forum},
     pages = {65--76},
     publisher = {mathdoc},
     volume = {5},
     year = {1972},
     zbl = {0256.43003},
     url = {http://geodesic.mathdoc.fr/item/SF_1972__5_133924/}
}