Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1994_56_2_a0, author = {V. S. Guba}, title = {Conditions for embeddability of semigroups in groups}, journal = {Matemati\v{c}eskie zametki}, pages = {3--14}, publisher = {mathdoc}, volume = {56}, number = {2}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1994_56_2_a0/} }
V. S. Guba. Conditions for embeddability of semigroups in groups. Matematičeskie zametki, Tome 56 (1994) no. 2, pp. 3-14. http://geodesic.mathdoc.fr/item/MZM_1994_56_2_a0/