@article{02204846, title = {A discrete fixed point theorem of Eilenberg as a particular case of the contraction principle.}, journal = {Fixed Point Theory and Applications [electronic only]}, volume = {2004}, year = {2004}, pages = {31-36}, doi = {10.1155/S1687182004311010}, zbl = {1078.47060}, language = {en}, url = {http://dml.mathdoc.fr/item/02204846} }
Jachymski, Jacek. A discrete fixed point theorem of Eilenberg as a particular case of the contraction principle.. Fixed Point Theory and Applications [electronic only], Tome 2004 (2004) pp. 31-36. doi : 10.1155/S1687182004311010. http://gdmltest.u-ga.fr/item/02204846/