@article{GDZPPN002218208,
title = {A Theorem of the Closed Graph Type.},
journal = {Manuscripta mathematica},
volume = {12},
year = {1974},
pages = {109-130},
zbl = {0286.46008},
url = {http://dml.mathdoc.fr/item/GDZPPN002218208}
}
Pták, Vlastimil. A Theorem of the Closed Graph Type.. Manuscripta mathematica, Tome 12 (1974) pp. 109-130. http://gdmltest.u-ga.fr/item/GDZPPN002218208/