@article{GDZPPN001261053,
title = {Injective hulls of S-systems over a Clifford semigroup.},
journal = {Semigroup forum},
volume = {43},
year = {1991},
pages = {19-24},
zbl = {0727.20045},
url = {http://dml.mathdoc.fr/item/GDZPPN001261053}
}
Park, Y.S.; Kim, J.P. Injective hulls of S-systems over a Clifford semigroup.. Semigroup forum, Tome 43 (1991) pp. 19-24. http://gdmltest.u-ga.fr/item/GDZPPN001261053/