@article{1103036933,
author = {O'Keefe, Edward S.},
title = {Primal clusters of two-element algebras.},
journal = {Pacific J. Math.},
volume = {11},
number = {4},
year = {1961},
pages = { 1505-1510},
language = {en},
url = {http://dml.mathdoc.fr/item/1103036933}
}
O'Keefe, Edward S. Primal clusters of two-element algebras.. Pacific J. Math., Tome 11 (1961) no. 4, pp. 1505-1510. http://gdmltest.u-ga.fr/item/1103036933/