@article{AUPO_2000_39_1_a15,
     author = {Vr\'anov\'a, Lidmila},
     title = {Irreducible elements of posets},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {209--213},
     year = {2000},
     volume = {39},
     number = {1},
     mrnumber = {1826364},
     zbl = {1039.06002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_2000_39_1_a15/}
}