@article{RMI_1992_1992_1_a0,
     author = {Peetre, Jaak},
     title = {La norma {S4} de una forma de {Hankel.}},
     journal = {Revista matem\'atica iberoamericana},
     pages = {121-130},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMI_1992_1992_1_a0/}
}