@article{2476,
author = {Morgado, Jos\'e},
title = {Note on the system of closure operators of the ordinal product of partially ordered sets},
journal = {Portugaliae mathematica},
volume = {24},
year = {1965},
pages = {189-195},
zbl = {0158.27001},
mrnumber = {0210626},
language = {en},
url = {http://dml.mathdoc.fr/item/2476}
}
Morgado, José. Note on the system of closure operators of the ordinal product of partially ordered sets. Portugaliae mathematica, Tome 24 (1965) pp. 189-195. http://gdmltest.u-ga.fr/item/2476/