%0 Journal Article %A Ih-Ching Hsu %T A Fundamental Functional Equation for Vector Lattices. (Short Communication). %J Aequationes mathematicae %D 1975 %P 111-112 %V 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1975__12_136491/ %F AM2_1975__12_136491