@article{GDZPPN001248618, title = {Locally compact subgroups of the spectrum of the measure algebra III.}, journal = {Semigroup forum}, volume = {4}, year = {1972}, pages = {65-76}, zbl = {0256.43003}, url = {http://dml.mathdoc.fr/item/GDZPPN001248618} }
Dunkl, C.; Ramirez, D. Locally compact subgroups of the spectrum of the measure algebra III.. Semigroup forum, Tome 4 (1972) pp. 65-76. http://gdmltest.u-ga.fr/item/GDZPPN001248618/