@article{GDZPPN002441470,
title = {Abstract multiplication semigroups.},
journal = {Mathematische Zeitschrift},
volume = {212},
year = {1993},
pages = {1-16},
zbl = {0793.47046},
url = {http://dml.mathdoc.fr/item/GDZPPN002441470}
}
Neerven, J.M.A.M. van. Abstract multiplication semigroups.. Mathematische Zeitschrift, Tome 212 (1993) pp. 1-16. http://gdmltest.u-ga.fr/item/GDZPPN002441470/