@article{bwmeta1.element.desklight-77811dc8-5f95-40ce-84a9-cc5fb4a3ef4e,
author = {J. P\l onka},
title = {On the join of equational classes of idempotent algebras and algebras with constants},
journal = {Colloquium Mathematicae},
volume = {27},
year = {1973},
pages = {193-195},
zbl = {0264.08005},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-77811dc8-5f95-40ce-84a9-cc5fb4a3ef4e}
}
J. Płonka. On the join of equational classes of idempotent algebras and algebras with constants. Colloquium Mathematicae, Tome 27 (1973) pp. 193-195. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-77811dc8-5f95-40ce-84a9-cc5fb4a3ef4e/