@article{EXMATH_1989_1989_1_a3,
     author = {Fern\'andez L\'opez, A. and Garc{\'\i}a Rus, E. and S\'anchez Campos, E.},
     title = {Regularidad de {Von} {Neumann} en sistemas triples de {Jord\'an} {Banach}},
     journal = {Extracta mathematicae},
     pages = {27-29},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1989_1989_1_a3/}
}