@article{MASLO_1994__44_1_a1,
     author = {K\^opka, Franti\v{s}ek and Chovanec, Ferdinand},
     title = {$D$-posets},
     journal = {Mathematica slovaca},
     pages = {21--34},
     publisher = {mathdoc},
     volume = {44},
     number = {1},
     year = {1994},
     mrnumber = {1290269},
     zbl = {0789.03048},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1994__44_1_a1/}
}