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@article{AM2_1974__11_136449, author = {Sidney Penner and Karl J. Schroeder}, title = {Abstract {Characterizations} of {Continuous} {Functions.}}, journal = {Aequationes mathematicae}, pages = {121--127}, publisher = {mathdoc}, volume = {11}, year = {1974}, zbl = {0291.54006}, url = {http://geodesic.mathdoc.fr/item/AM2_1974__11_136449/} }
Sidney Penner; Karl J. Schroeder. Abstract Characterizations of Continuous Functions.. Aequationes mathematicae, Tome 11 (1974), pp. 121-127. http://geodesic.mathdoc.fr/item/AM2_1974__11_136449/