Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{SF_1971__3_133844, author = {N. Bernstein}, title = {Group-like semigroups.}, journal = {Semigroup forum}, pages = {58--63}, publisher = {mathdoc}, volume = {3}, year = {1971}, zbl = {0241.20051}, url = {http://geodesic.mathdoc.fr/item/SF_1971__3_133844/} }
N. Bernstein. Group-like semigroups.. Semigroup forum, Tome 3 (1971), pp. 58-63. http://geodesic.mathdoc.fr/item/SF_1971__3_133844/