@article{10_21136_CMJ_1991_102436,
     author = {Chajda, Ivan},
     title = {Varieties having distributive lattices of quasiorders},
     journal = {Czechoslovak Mathematical Journal},
     pages = {85--89},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {1991},
     doi = {10.21136/CMJ.1991.102436},
     mrnumber = {1087626},
     zbl = {0796.08007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1991.102436/}
}