@article{RMI_2005_2005_1_a28,
     author = {Contreras, Manuel D. and D{\'\i}az-Madrigal, Santiago},
     title = {Iteraci\'on fraccionaria en el \'algebra del disco: extremos y operadores de composici\'on.},
     journal = {Revista matem\'atica iberoamericana},
     pages = {911-928},
     publisher = {mathdoc},
     volume = {21},
     number = {3},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMI_2005_2005_1_a28/}
}