Moghadam, M.M. and Tajaddini, A. 2009. Inverse Eigenvalue Problem with Non-simple Eigenvalues for Damped Vibration Systems. Journal of Informatics and Mathematical Sciences. 1, 2 & 3 (Dec. 2009), 91–97. DOI:https://doi.org/10.26713/jims.v1i2 & 3.13.