1. An extension of Tietze's theorem;Dugundji;Pacif. J. Math.,1951
2. Some theorems on absolute neighborhood retracts;Hanner;Ark. Math. Svenska Vetens. Akad.,1951
3. The finite topology of a linear space;Kakutani;Arch. Math.,1963
4. General Topology;Kelley,1955
5. Linear Topological Spaces;Kelley,1963