@article{10_4064_fm_87_2_89_92, author = {Kenneth Kellum}, title = {On a question of {Borsuk} concerning non-continuous retracts {I}}, journal = {Fundamenta Mathematicae}, pages = {89--92}, publisher = {mathdoc}, volume = {87}, number = {2}, year = {1975}, doi = {10.4064/fm-87-2-89-92}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-87-2-89-92/} }