@Inproceedings{ifac-05_Zhang-Lanzon, author = "Zhang, G. and Lanzon, A.", title = "On poles and zeros of input-output and chain-scattering systems", booktitle = "Proceedings of the 16th {IFAC} World Congress", address = "Prague, Czech Republic", doi = "10.3182/20050703-6-CZ-1902.00629", month = jul, year = 2005}