Borel subsets of metric separable spaces Bukovský, L. — 1967 General Topology and its Relations to Modern Analysis and Algebra
A universal function for continuous functions Bukovský, L.; Butkovičová, E. — 1984 Proceedings of the 11th Winter School on Abstract Analysis
Unbouded descending infinite chain in Rudin-Frolík order Bukovský, L.; Butkovičová, E. — 1981 Abstracta. 9th Winter School on Abstract Analysis
Rapid ultrafilter need not be Q-point Bukovský, L.; Copláková, E. — 1982 Proceedings of the 10th Winter School on Abstract Analysis