@article{BAG_1992__33_138507,
     author = {T. Wesolowski},
     title = {Subdirectly {Irreducibles} in some {Varieties} of {Algebras} having the {Semilattice} {Structure}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {97--102},
     publisher = {mathdoc},
     volume = {33},
     year = {1992},
     zbl = {0770.08005},
     url = {http://geodesic.mathdoc.fr/item/BAG_1992__33_138507/}
}