@article{GDZPPN002218437, title = {Positive Approximate Identities and Lattice-Ordered Dual spaces.}, journal = {Manuscripta mathematica}, volume = {12}, year = {1974}, pages = {57-64}, zbl = {0305.46013}, url = {http://dml.mathdoc.fr/item/GDZPPN002218437} }
Walsh, Bertram. Positive Approximate Identities and Lattice-Ordered Dual spaces.. Manuscripta mathematica, Tome 12 (1974) pp. 57-64. http://gdmltest.u-ga.fr/item/GDZPPN002218437/