@article{urn:eudml:doc:42557, title = {$\Sigma$-completeness and closed graph theorems.}, journal = {Collectanea Mathematica}, volume = {42}, year = {1991}, pages = {253-263}, zbl = {0773.46001}, mrnumber = {MR1203184}, language = {en}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:42557} }
Díaz, Santiago. Σ-completeness and closed graph theorems.. Collectanea Mathematica, Tome 42 (1991) pp. 253-263. http://gdmltest.u-ga.fr/item/urn:eudml:doc:42557/