1. Virtual reference direct design method: an off-line approach to data-based control system design
2. Virtual reference feedback tuning (VRFT): a new direct approach to the design of feedback controllers. In Proceedings of the 39th IEEE Conference on Decision and Control, Sydney, Australia, December 2000; 623-628.
3. Virtual reference feedback tuning: a new direct data-based method for the design of feedback controllers. Ph.D. Thesis - Università di Brescia, 2001.