@article{106219, author = {Tom\'a\v s Kepka}, title = {Distributive groupoids and preradicals. II.}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {024}, year = {1983}, pages = {199-209}, zbl = {0529.20057}, mrnumber = {711258}, language = {en}, url = {http://dml.mathdoc.fr/item/106219} }
Kepka, Tomáš. Distributive groupoids and preradicals. II.. Commentationes Mathematicae Universitatis Carolinae, Tome 024 (1983) pp. 199-209. http://gdmltest.u-ga.fr/item/106219/
Distributive groupoids, Rozpravy ČSAV 91/3, 1981. (1981) | MR 0672563
Distributive groupoids and preradicals I, Comment. Math. Univ. Carolinae 24 (1983). (1983) | MR 0711258 | Zbl 0519.20055