@article{GDZPPN001253417, title = {Commutative semigroups with self-dual lattice of subsemigroups.}, journal = {Semigroup forum}, volume = {18}, year = {1979}, pages = {119-162}, zbl = {0419.20045}, url = {http://dml.mathdoc.fr/item/GDZPPN001253417} }
Kacman, S.I. Commutative semigroups with self-dual lattice of subsemigroups.. Semigroup forum, Tome 18 (1979) pp. 119-162. http://gdmltest.u-ga.fr/item/GDZPPN001253417/