@article{01230062, title = {A counter example on common periodic points of functions.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {21}, year = {1998}, pages = {823-827}, doi = {10.1155/S0161171298001148}, zbl = {0913.54031}, language = {en}, url = {http://dml.mathdoc.fr/item/01230062} }
Alikhani-Koopaei, Aliasghar. A counter example on common periodic points of functions.. International Journal of Mathematics and Mathematical Sciences, Tome 21 (1998) pp. 823-827. doi : 10.1155/S0161171298001148. http://gdmltest.u-ga.fr/item/01230062/