@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/