@article{CMJ_1999__49_2_a6,
     author = {Chajda, I. and Pinus, A. and Denisov, A.},
     title = {Lattices of quasiorders on universal algebras},
     journal = {Czechoslovak Mathematical Journal},
     pages = {291--301},
     publisher = {mathdoc},
     volume = {49},
     number = {2},
     year = {1999},
     mrnumber = {1692469},
     zbl = {0951.08002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_1999__49_2_a6/}
}