@article{EXMATH_2003_2003_1_a19,
     author = {Aqzzouz, Belmesnaoui},
     title = {Caracterizaciones de b-espacios libres.},
     journal = {Extracta mathematicae},
     pages = {289-295},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {2003},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_2003_2003_1_a19/}
}