TY - JOUR AU - Ih-Ching Hsu TI - A Fundamental Functional Equation for Vector Lattices. (Short Communication). JO - Aequationes mathematicae PY - 1975 SP - 111 EP - 112 VL - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AM2_1975__12_136491/ ID - AM2_1975__12_136491 ER -