@article{EXMATH_1999_1999_1_a9,
     author = {Bahaj, Mohamed},
     title = {Periodicidad de las soluciones de ecuaciones diferenciales en espacios de {Banach.}},
     journal = {Extracta mathematicae},
     pages = {1-8},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {1999},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1999_1999_1_a9/}
}