@article{CLTM_1977_1977_1_a13,
     author = {Amores, A. M. and  Varela, F.},
     title = {Generalizaci\'on de la forma de {Liouville} - {Aplicaciones.}},
     journal = {Collectanea mathematica},
     pages = {191-200},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {1977},
     zbl = {0397.58002},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1977_1977_1_a13/}
}