@article{KJM_2007_30_1_a18,
     author = {Ljubi\v{s}a Koci\'c and Liljana Stefanovska and Sonja Gegovska-Zajkova},
     title = {Iterative operators for {Farey} tree},
     journal = {Kragujevac Journal of Mathematics},
     pages = {253 - 262},
     publisher = {mathdoc},
     volume = {30},
     number = {1},
     year = {2007},
     url = {http://geodesic.mathdoc.fr/item/KJM_2007_30_1_a18/}
}