@article{EXMATH_1996_1996_1_a41,
     author = {Ben{\'\i}tez, Carlos and Fern\'andez, Manuel and Soriano, Mar{\'\i}a L.},
     title = {Normas adecuadas para aproximaci\'on simult\'anea.},
     journal = {Extracta mathematicae},
     pages = {485-488},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1996_1996_1_a41/}
}