On the maximal Dedekind completion of a lattice ordered group Štefan Černák (1979) Mathematica Slovaca Similarity:
On partially ordered groups of locally finite length Božena Černáková (1986) Mathematica Slovaca Similarity:
Convergence with a fixed regulator in Archimedean lattice ordered groups Štefan Černák (2006) Mathematica Slovaca Similarity: