@article {Campestrini:Eckhard:Gevers:Bazanella:2011,
	title = {Virtual Reference Feedback Tuning for non-minimum phase plants},
	journal = {Automatica},
	volume = {47},
	number = {8},
	year = {2011},
	note = {n/a},
	pages = {1778{\textendash}1784},
	abstract = {<p>Model reference control design methods fail when the plant has one or more non-minimum phase zeros that are not included in the reference model, leading possibly to an unstable closed loop. This is a very serious problem for data-based control design methods, where the plant is typically unknown. In this paper, we extend the Virtual Reference Feedback Tuning method to non-minimum phase plants. This extension is based on the idea proposed in Lecchini and Gevers (2002) for Iterative Feedback Tuning. We present a simple two-step procedure that can cope with the situation where the unknown plant may or may not have non-minimum phase zeros.</p>
},
	issn = {0005{\textendash}1098},
	doi = {10.1016/j.automatica.2011.04.002},
	author = {L. Campestrini and D. Eckhard and M. Gevers and A. S. Bazanella}
}
