@article{GDZPPN00228801X,
title = {Embedding of Topological Semigroups.},
journal = {Mathematische Annalen},
volume = {137},
year = {1959},
pages = {197-203},
zbl = {0099.01803},
url = {http://dml.mathdoc.fr/item/GDZPPN00228801X}
}
ROTHMAN, N.J. Embedding of Topological Semigroups.. Mathematische Annalen, Tome 137 (1959) pp. 197-203. http://gdmltest.u-ga.fr/item/GDZPPN00228801X/