@article{GDZPPN002383667,
title = {Generalized "Boolean" theory of universal algebras. Part I.},
journal = {Mathematische Zeitschrift},
volume = {59},
year = {1953},
pages = {306-336},
zbl = {0051.02201},
url = {http://dml.mathdoc.fr/item/GDZPPN002383667}
}
Foster, Alfred L. Generalized "Boolean" theory of universal algebras. Part I.. Mathematische Zeitschrift, Tome 59 (1953) pp. 306-336. http://gdmltest.u-ga.fr/item/GDZPPN002383667/