@article{10_1017_S0017089500006807,
     author = {Mbekhta, Mostafa},
     title = {Generalisation de la decomposition de kato aux op\'erateurs paranormaux et spectraux},
     journal = {Glasgow mathematical journal},
     pages = {159--175},
     year = {1987},
     volume = {29},
     number = {2},
     doi = {10.1017/S0017089500006807},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006807/}
}