@article{105641, author = {Jaroslav Je\v zek and Tom\'a\v s Kepka}, title = {Semigroup representations of commutative idempotent Abelian groupoids}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {016}, year = {1975}, pages = {487-500}, zbl = {0313.20029}, mrnumber = {0382484}, language = {en}, url = {http://dml.mathdoc.fr/item/105641} }
Ježek, Jaroslav; Kepka, Tomáš. Semigroup representations of commutative idempotent Abelian groupoids. Commentationes Mathematicae Universitatis Carolinae, Tome 016 (1975) pp. 487-500. http://gdmltest.u-ga.fr/item/105641/
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