@article{04169652, title = {Common fixed points of compatible mappings.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {13}, year = {1990}, pages = {61-66}, doi = {10.1155/S0161171290000096}, zbl = {0711.54029}, language = {en}, url = {http://dml.mathdoc.fr/item/04169652} }
Kang, S.M.; Cho, Y.J.; Jungck, G. Common fixed points of compatible mappings.. International Journal of Mathematics and Mathematical Sciences, Tome 13 (1990) pp. 61-66. doi : 10.1155/S0161171290000096. http://gdmltest.u-ga.fr/item/04169652/