1. Topological Spaces;Čech,1966
2. Ordered topological spaces;Eilenberg;Amer. Journ. Math.,1941
3. A topological characterization of products of compact totally ordered spaces;de Groot;Gen. Topology Appl.,1972
4. Ordnungsfa̋higkeit topologischer Räume;Herrlich;Inaugural dissertation,1962
5. On conditions equivalent to the orderability of a connected space;Kok;Nieuw Arch. Wisk.,1970