On the probability that k generalized integers are relatively H-prime Štefan Porubský — 1981 Colloquium Mathematicae
Correction to my paper: “Commutative semi-primary x -semigroups” Štefan Porubský — 1978 Czechoslovak Mathematical Journal
Natural exactly covering systems of congruences Štefan Porubský — 1974 Czechoslovak Mathematical Journal
On the density of certain sets in arithmetical semigroups Štefan Porubský — 1979 Czechoslovak Mathematical Journal
Translated geometric progressions and covering systems Štefan Porubský — 1978 Časopis pro pěstování matematiky
Voronoi's congruence via Bernoulli distributions Štefan Porubský — 1984 Czechoslovak Mathematical Journal
Generalization of Some Results for Exactly Covering Systems Štefan Porubský — 1972 Matematický časopis
Rényi's formula with remainder term on arithmetical semigroups Štefan Porubský — 1990 Mathematica Slovaca
Covering systems, Kubert identities and difference equations Štefan Porubský — 2000 Mathematica Slovaca