@article{2003, author = {Arens, Richard}, title = {Ordered sequence spaces}, journal = {Portugaliae mathematica}, volume = {10}, year = {1951}, pages = {25-28}, zbl = {0042.28102}, mrnumber = {0045186}, language = {en}, url = {http://dml.mathdoc.fr/item/2003} }
Arens, Richard. Ordered sequence spaces. Portugaliae mathematica, Tome 10 (1951) pp. 25-28. http://gdmltest.u-ga.fr/item/2003/