@article{02236322, title = {On the periodic nature of some max-type difference equations.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2005}, year = {2005}, pages = {2227-2239}, doi = {10.1155/IJMMS.2005.2227}, zbl = {1084.39004}, language = {en}, url = {http://dml.mathdoc.fr/item/02236322} }
Elabbasy, E.M.; El-Metwally, H.; Elsayed, E.M. On the periodic nature of some max-type difference equations.. International Journal of Mathematics and Mathematical Sciences, Tome 2005 (2005) pp. 2227-2239. doi : 10.1155/IJMMS.2005.2227. http://gdmltest.u-ga.fr/item/02236322/