@article{02119177, title = {Logics that are generated by idempotents.}, journal = {Lobachevskii Journal of Mathematics}, volume = {15}, year = {2004}, pages = {11-19}, zbl = {1060.15018}, language = {en}, url = {http://dml.mathdoc.fr/item/02119177} }
Katrnos̆ka, Frantis̆ek. Logics that are generated by idempotents.. Lobachevskii Journal of Mathematics, Tome 15 (2004) pp. 11-19. http://gdmltest.u-ga.fr/item/02119177/