Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_2004_34_1a_3, author = {T. Kamran}, title = {Noncommuting $f${--Contraction} mappings}, journal = {Novi Sad Journal of Mathematics}, pages = {33-37}, publisher = {mathdoc}, volume = {34}, number = {1}, year = {2004}, url = {http://geodesic.mathdoc.fr/item/NSJOM_2004_34_1a_3/} }
T. Kamran. Noncommuting $f$--Contraction mappings. Novi Sad Journal of Mathematics, Tome 34 (2004) no. 1. http://geodesic.mathdoc.fr/item/NSJOM_2004_34_1a_3/