@article{RMI_2004_2004_1_a33,
     author = {Langley, James and Rossi, John},
     title = {Funciones meromorfas de la forma f(z) = {\ensuremath{\Sigma}n=1\ensuremath{\infty}} an/(z - zn).},
     journal = {Revista matem\'atica iberoamericana},
     pages = {285-314},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMI_2004_2004_1_a33/}
}