TY - JOUR AU - Bertram Walsh TI - Positive Approximate Identities and Lattice-Ordered Dual spaces. JO - Manuscripta mathematica PY - 1974 SP - 57 EP - 64 VL - 14 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM2_1974__14_154280/ ID - MM2_1974__14_154280 ER -