@article{10_1017_S0017089507003904,
     author = {MARY, J. STELLA IRENE and PANAYAPPAN, S.},
     title = {WEYL'S {THEOREM} {FOR} {CLASS} {A(k)} {OPERATORS}},
     journal = {Glasgow mathematical journal},
     pages = {39--46},
     year = {2008},
     volume = {50},
     number = {1},
     doi = {10.1017/S0017089507003904},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089507003904/}
}