On pseudo-radial spaces Aleksander V. Arhangel'skii, Romano Isler, Gino Tironi (1986) Commentationes Mathematicae Universitatis Carolinae Similarity:
More on the product of pseudo radial spaces Angelo Bella (1991) Commentationes Mathematicae Universitatis Carolinae Similarity: It is proved that the product of two pseudo radial compact spaces is pseudo radial provided that one of them is monolithic.