Brouwer's Fixed Point Theorem.
@article{1730, title = {Brouwer's Fixed Point Theorem}, journal = {CUBO, A Mathematical Journal}, volume = {4}, year = {2002}, language = {en}, url = {http://dml.mathdoc.fr/item/1730} }
Kirk, W. A. Brouwer's Fixed Point Theorem. CUBO, A Mathematical Journal, Tome 4 (2002) . http://gdmltest.u-ga.fr/item/1730/