@article{2574, author = {Barros, Constantino M. de}, title = {Filters in partially ordered sets}, journal = {Portugaliae mathematica}, volume = {27}, year = {1968}, pages = {87-98}, zbl = {0302.06003}, mrnumber = {0270982}, language = {en}, url = {http://dml.mathdoc.fr/item/2574} }
Barros, Constantino M. de. Filters in partially ordered sets. Portugaliae mathematica, Tome 27 (1968) pp. 87-98. http://gdmltest.u-ga.fr/item/2574/