The elementary theory of Abelian groups with m-chains of pure subgroups
The geometry of the set of characters iduced by valuations.
The Hurwitz Matrix Equations and Multifour Groups.
The nilpotency of torsion-free rings with given type set
The possibility of extending factorization results to infinite Abelian groups.
Theorien abelscher Gruppen mit einem einstelligen Prädikat
Translačné štruktúry. Centrálne a necentrálne translačné štruktúry
Two combinatorial problems in group theory
Two notes on radicals of Abelian groups