@article{AUCMP_1987__28_2_a9,
     author = {Hol\'a, \v{L}.},
     title = {On relations approximated by continuous functions},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {67--72},
     publisher = {mathdoc},
     volume = {28},
     number = {2},
     year = {1987},
     mrnumber = {0932741},
     zbl = {0694.54018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUCMP_1987__28_2_a9/}
}