@article{02077601,
title = {On compactification lattices of subsemigroups of },
journal = {Journal of Lie Theory},
volume = {14},
year = {2004},
pages = {73-109},
zbl = {1062.22017},
language = {en},
url = {http://dml.mathdoc.fr/item/02077601}
}
Breckner, Brigitte E.; Ruppert, Wolfgang A.F. On compactification lattices of subsemigroups of . Journal of Lie Theory, Tome 14 (2004) pp. 73-109. http://gdmltest.u-ga.fr/item/02077601/