@article{SMJ2_2011_37_4_a1,
     author = {Benharrat, Mohammed and Messirdi, Bekkai},
     title = {On the generalized {Kato} spectrum},
     journal = {Serdica Mathematical Journal},
     pages = {283--294},
     publisher = {mathdoc},
     volume = {37},
     number = {4},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2011_37_4_a1/}
}