@article{CMUC_2003__44_4_a1,
     author = {Chajda, Ivan},
     title = {Lattices and semilattices having an antitone involution in every upper interval},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {577--585},
     publisher = {mathdoc},
     volume = {44},
     number = {4},
     year = {2003},
     mrnumber = {2062874},
     zbl = {1101.06003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2003__44_4_a1/}
}