New characterizations of T0-spaces. Josep Guía, Rafael Lledó, Isabel Segura (1986) Collectanea Mathematica
Not all dyadic spaces are supercompact Murray G. Bell (1990) Commentationes Mathematicae Universitatis Carolinae
Null-families of subsets of monotonically normal compacta J. Nikiel, L. Treybig (1996) Colloquium Mathematicae