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@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/} }
Holá, Ľ. On relations approximated by continuous functions. Acta Universitatis Carolinae. Mathematica et Physica, Tome 28 (1987) no. 2, pp. 67-72. http://geodesic.mathdoc.fr/item/AUCMP_1987__28_2_a9/