@Inproceedings{cdc-11a_Mabrok-Kallapur-Petersen-Lanzon, author = "Mabrok, M. and Kallapur, A. G. and Petersen, I. R. and Lanzon, A.", title = "Enforcing a system model to be negative imaginary via perturbation of Hamiltonian matrices", booktitle = "Proceedings of the 50th {IEEE} Conference on Decision and Control and European Control Conference", address = "Orlando, Florida, USA", pages = "3748-3752", doi = "10.1109/CDC.2011.6160286", month = dec, year = 2011}