1. Topological Function Spaces;Arhangelskii,1992
2. The frequency spectrum of a topological space and classification of spaces;Arhangelskii;Sov. Math. Dokl.,1992
3. Projective versions of selection principles;Bonanzinga;Topol. Appl.,2010
4. QN-space, wQN-space and covering properties;Bukovský;Topol. Appl.,2007
5. Local dimension of normal spaces;Dowker;Quart. J. Math. Oxford,1955