%0 Journal Article %A Antosik, Piotr %A Swartz, Charles %T A remark on a Banach-Steinhaus theorem of Narang %J Portugaliae mathematica %D 1990 %P 15-17 %V 47 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1990__47_1_115696/ %G en %F PORMA_1990__47_1_115696