@article{MABA_1990_4_3-4_a0,
     author = {Gabor Czedli},
     title = {A {Note} on {Lattice} {Horn} {Sentences} with {Three} {Variables}},
     journal = {Mathematica balkanica},
     pages = {209},
     publisher = {mathdoc},
     volume = {4},
     number = {3-4},
     year = {1990},
     url = {http://geodesic.mathdoc.fr/item/MABA_1990_4_3-4_a0/}
}