On total matching numbers and total covering numbers for k -uniform hypergraphs František Olejník — 1984 Mathematica Slovaca
On edge independence numbers and edge covering numbers of k -uniform hypergraph František Olejník — 1989 Mathematica Slovaca
Theorems of the Nordhaus-Gaddum type for k -uniform hypergraphs František Olejník — 1981 Mathematica Slovaca
On chromatic and achromatic numbers of uniform hypergraphs Ernest Jucovič; František Olejník — 1974 Časopis pro pěstování matematiky