@article{MASLO_1987__37_1_a2,
     author = {Chajda, Ivan},
     title = {Directly decomposable congruences in varieties with nullary operations},
     journal = {Mathematica slovaca},
     pages = {31--35},
     publisher = {mathdoc},
     volume = {37},
     number = {1},
     year = {1987},
     mrnumber = {899013},
     zbl = {0624.08006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1987__37_1_a2/}
}