@article{GDZPPN002397242,
title = {Algebraic and Equational Semi-Maximality; Equational Spectra: I.},
journal = {Mathematische Zeitschrift},
volume = {93},
year = {1966},
pages = {30-50},
zbl = {0136.26101},
url = {http://dml.mathdoc.fr/item/GDZPPN002397242}
}
Foster, Alfred L.; Pixley, Alden. Algebraic and Equational Semi-Maximality; Equational Spectra: I.. Mathematische Zeitschrift, Tome 93 (1966) pp. 30-50. http://gdmltest.u-ga.fr/item/GDZPPN002397242/