@article{SF_1992__45_3_135190,
     author = {A. Nagy},
     title = {Subdirectly irreducible completely symmetrical semigroups.},
     journal = {Semigroup forum},
     pages = {267--271},
     publisher = {mathdoc},
     volume = {45},
     number = {3},
     year = {1992},
     zbl = {0808.20048},
     url = {http://geodesic.mathdoc.fr/item/SF_1992__45_3_135190/}
}