@article{BUMI_2002_8_5B_3_a14,
     author = {Jeribi, Aref},
     title = {A characterization of the essential spectrum and applications},
     journal = {Bollettino della Unione matematica italiana},
     pages = {805--825},
     publisher = {mathdoc},
     volume = {Ser. 8, 5B},
     number = {3},
     year = {2002},
     zbl = {1099.47501},
     mrnumber = {1346131},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2002_8_5B_3_a14/}
}