@article{BUMI_2003_8_6A_2_a18,
     author = {Isidori, Maria Cristina},
     title = {Sottospazi invarianti per operatori compact friendly in spazi di {Sobolev}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {275--278},
     publisher = {mathdoc},
     volume = {Ser. 8, 6A},
     number = {2},
     year = {2003},
     zbl = {0819.47049},
     mrnumber = {1284604},
     language = {it},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2003_8_6A_2_a18/}
}