@misc{RCM_2009_43_1_a2,
     title = {El teorema de {Cayley} revisitado},
     journal = {Revista colombiana de matematicas},
     pages = {19--34},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {2009},
     url = {http://geodesic.mathdoc.fr/item/RCM_2009_43_1_a2/}
}