%0 Journal Article %A Van Dulst, D. %T Barreledness of subspaces of countable codimension and the closed graph theorem %J Compositio Mathematica %D 1972 %P 227-234 %V 24 %N 2 %I Wolters-Noordhoff Publishing %U http://archive.numdam.org/item/CM_1972__24_2_227_0/ %G en %F CM_1972__24_2_227_0