@article{RACSAM_2006_2006_1_a7,
     author = {Finet, Catherine},
     title = {Rango num\'erico de ciertos operadores de composici\'on.},
     journal = {Revista de la Real Academia de Ciencias Exactas, F{\'\i}sicas y Naturales. Matem\'aticas},
     pages = {127-135},
     publisher = {mathdoc},
     volume = {100},
     number = {1-2},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RACSAM_2006_2006_1_a7/}
}