Sensitivity Analysis of Multiple Eigenvalues
Alexander P. Seyranian
[size=1.7em]Mechanics Based Design of Structures and Machines: An International Journal
[size=1.2em]Volume 21, Issue 2, 1993, Pages 261 - 284
[size=1.2em]http://www.informaworld.com/smpp/content~db=all~content=a776390296