@article{EXMATH_1997_1997_1_a18,
     author = {Fern\'andez Castillo, Jes\'us M.},
     title = {Sumas {Snark} de espacios de {Banach.}},
     journal = {Extracta mathematicae},
     pages = {117-128},
     year = {1997},
     volume = {12},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1997_1997_1_a18/}
}