@article{CC_2003_32_4_a2,
     author = {Sun, Yeong-Jeu},
     title = {The eigenvalue derivatives of linear damped systems},
     journal = {Control and Cybernetics},
     pages = {735--741},
     year = {2003},
     volume = {32},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2003_32_4_a2/}
}