Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1961_138_4_a14, author = {L. N. Shevrin}, title = {Semigroups with certain types of subsemigroup lattices}, journal = {Doklady Akademii Nauk}, pages = {796--798}, publisher = {mathdoc}, volume = {138}, number = {4}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_138_4_a14/} }
L. N. Shevrin. Semigroups with certain types of subsemigroup lattices. Doklady Akademii Nauk, Tome 138 (1961) no. 4, pp. 796-798. http://geodesic.mathdoc.fr/item/DAN_1961_138_4_a14/