@article{AUPO_2001__40_1_a4,
     author = {Chajda, Ivan and L\"anger, Helmut},
     title = {A simple basis of ideal terms of {Brouwerian} semilattices},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {37--42},
     publisher = {mathdoc},
     volume = {40},
     number = {1},
     year = {2001},
     mrnumber = {1904682},
     zbl = {1040.06001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_2001__40_1_a4/}
}