Irreducible elements of posets Lidmila Vránová — 2000 Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
Dense subsets of ordered sets Vítězslav Novák; Lidmila Vránová — 2001 Mathematica Bohemica Some modifications of the definition of density of subsets in ordered (= partially ordered) sets are given and the corresponding concepts are compared.