1. The power of bicompacta with first axiom of countability;Arhangelʼskii;Soviet Math. Dokl.,1969
2. An introduction to applications of elementary submodels to topology;Dow;Topology Proc.,1988
3. General Topology;Engelking,1989
4. Having a small weight is determined by the small subspaces;Hajnal;Proc. Amer. Math. Soc.,1980
5. Reflection theorems for cardinal functions;Hodel;Topology Appl.,2000