@article{MASLO_1990__40_3_a1,
     author = {Lihov\'a, Judita},
     title = {Varieties of directed multilattices},
     journal = {Mathematica slovaca},
     pages = {233--244},
     publisher = {mathdoc},
     volume = {40},
     number = {3},
     year = {1990},
     mrnumber = {1094776},
     zbl = {0753.06006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1990__40_3_a1/}
}