Daren Kunkle Matthias Schröder Some Examples of Non-Metrizable Spaces Allowing a Simple Type-2 Complexity Theory. 111-123 2005 120 Electr. Notes Theor. Comput. Sci. http://dx.doi.org/10.1016/j.entcs.2004.06.038 db/journals/entcs/entcs120.html#KunkleS05