The group of units as a maximal inverse subsemigroup.
Semigroup forum, Tome 25 (1982), pp. 381-382
@article{SF_1982__25_134587,
author = {B. Baird},
title = {The group of units as a maximal inverse subsemigroup.},
journal = {Semigroup forum},
pages = {381--382},
year = {1982},
volume = {25},
zbl = {0499.20042},
url = {http://geodesic.mathdoc.fr/item/SF_1982__25_134587/}
}
B. Baird. The group of units as a maximal inverse subsemigroup.. Semigroup forum, Tome 25 (1982), pp. 381-382. http://geodesic.mathdoc.fr/item/SF_1982__25_134587/