@article{EXMATH_1995_1995_1_a24,
     author = {Fern\'andez, Manuel and Soriano, Mar{\'\i}a L.},
     title = {Sobre el teorema de alternancia de {Chebyshev.}},
     journal = {Extracta mathematicae},
     pages = {64-67},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {1995},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1995_1995_1_a24/}
}