@article{10_21136_MB_1992_126279,
     author = {Duda, Jarom{\'\i}r},
     title = {Tolerances on powers of a finite algebra},
     journal = {Mathematica Bohemica},
     pages = {299--304},
     publisher = {mathdoc},
     volume = {117},
     number = {3},
     year = {1992},
     doi = {10.21136/MB.1992.126279},
     mrnumber = {1184543},
     zbl = {0777.08004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.1992.126279/}
}