@article{AUPO_2002_41_1_a3,
     author = {Chajda, Ivan},
     title = {A characterization of congruence kernels in pseudocomplemented semilattices},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {35--37},
     year = {2002},
     volume = {41},
     number = {1},
     mrnumber = {1967337},
     zbl = {1042.06002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_2002_41_1_a3/}
}