Mohammedi R. Abdel-Aziz Salah M. El-Sayed Sensitivity analysis of the largest dependent eigenvalue functions of eigensystems. 103-110 1999 100 Applied Mathematics and Computation 2-3 http://dx.doi.org/10.1016/S0096-3003(98)00031-9 db/journals/amc/amc100.html#Abdel-AzizE99