@article{EXMATH_1989_1989_1_a5,
     author = {Arcoya, D.},
     title = {Soluciones peri\'odicas de sistemas hamiltonianos con resonancia fuerte en el infinito.},
     journal = {Extracta mathematicae},
     pages = {33-35},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1989_1989_1_a5/}
}