@article{RMC_2004_2004_1_a20,
     author = {Hale, Jack K.},
     title = {Estabilidad y sistemas din\'amicos gradientes.},
     journal = {Revista matem\'atica complutense},
     pages = {7-57},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMC_2004_2004_1_a20/}
}