A combinatorial theorem on the existence of a separating element and its applications to sequences and -derivations of measures
A continuous geometry as a mathematical model for quantum mechanics
A note on generalized Souslin's problem
A shrinking of a category of societies is a universal partly ordered class
Automorphismen geordneter Mengen
Non-provability of Souslin's hypothesis
O lexikografickém součtu částečně uspořádaných množin
On atoms in lattices of primitive classes
On necessary conditions of optimality in linear spaces
Poznámka o endomorfizmoch na sväzoch
Summer session on ordered sets at Cikháj
The lattice of radical filters of a commutative Noetherian ring