@article{10_4064_sm148_3_4,
     author = {M. Berkani and M. Sarih},
     title = {An {Atkinson-type} theorem for {B-Fredholm} operators},
     journal = {Studia Mathematica},
     pages = {251--257},
     publisher = {mathdoc},
     volume = {148},
     number = {3},
     year = {2001},
     doi = {10.4064/sm148-3-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm148-3-4/}
}