@article{AUCMP_2006__47_1_a1, author = {Fla\v{s}ka, V\'aclav and Kepka, Tom\'a\v{s}}, title = {Commutative zeropotent semigroups}, journal = {Acta Universitatis Carolinae. Mathematica et Physica}, pages = {3--14}, publisher = {mathdoc}, volume = {47}, number = {1}, year = {2006}, mrnumber = {2509893}, zbl = {1145.20321}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AUCMP_2006__47_1_a1/} }