@article{SF_1984__29_134687,
     author = {A. Nagy},
     title = {On semigroups which are not divided by any non-trivial semigroup with an identity.},
     journal = {Semigroup forum},
     pages = {251--252},
     publisher = {mathdoc},
     volume = {29},
     year = {1984},
     zbl = {0545.20053},
     url = {http://geodesic.mathdoc.fr/item/SF_1984__29_134687/}
}