@article{2403,
author = {Morgado, Jos\'e},
title = {On the closure operators of the ordinal product of partially ordered sets},
journal = {Portugaliae mathematica},
volume = {21},
year = {1962},
pages = {209-220},
zbl = {0107.25301},
mrnumber = {0148574},
language = {en},
url = {http://dml.mathdoc.fr/item/2403}
}
Morgado, José. On the closure operators of the ordinal product of partially ordered sets. Portugaliae mathematica, Tome 21 (1962) pp. 209-220. http://gdmltest.u-ga.fr/item/2403/