@article{GDZPPN001260626,
title = {The minimal ideal of compact subsemigroups of \ss\ S.},
journal = {Semigroup forum},
volume = {40},
year = {1990},
pages = {201-214},
zbl = {0842.22001},
url = {http://dml.mathdoc.fr/item/GDZPPN001260626}
}
Davenport, D. The minimal ideal of compact subsemigroups of ß S.. Semigroup forum, Tome 40 (1990) pp. 201-214. http://gdmltest.u-ga.fr/item/GDZPPN001260626/