@article{10_21136_CMJ_1988_102215,
     author = {Chajda, Ivan},
     title = {Tolerances in congruence permutable algebras},
     journal = {Czechoslovak Mathematical Journal},
     pages = {218--225},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {1988},
     doi = {10.21136/CMJ.1988.102215},
     mrnumber = {946289},
     zbl = {0678.08004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1988.102215/}
}