1. Aiena, P.: Fredholm and Local Spectral Theory with Applications to Multipliers. Kluwer Academic Publisher, Dordrecht, Boston, London (2004)
2. Aiena, P., Duggal, B.P.: Tensor products, multiplications and Weyl’s theorem. Rend. Circ. Mat. Palermo 54(2), 387–395 (2005)
3. Aiena P., Sanabria J.E.: On left and right poles of the resolvent. Acta Sci. Math. (Szeged) 74, 669–687 (2008)
4. Amouch M., Zguitti H.: On the equivalence of Browder’s and generalized Browder’s theorem. Glasgow Math. J. 48, 179–185 (2006)
5. Barne, B.A.: Riez Points and Weyl’s theorem. Integral Equ. Oper. Theory 34, 187–196 (1999)