@article{LJM_2005_18_a2,
     author = {M. Benalili and A. Lansari},
     title = {Spectral properties of the adjoint operator and applications},
     journal = {Lobachevskii journal of mathematics},
     pages = {33--51},
     publisher = {mathdoc},
     volume = {18},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/LJM_2005_18_a2/}
}