1. (1) M. C. Campi: “Virtual reference feedback tuning (VRFT): A direct method for the design of feedback controllers”, Automatica, Vol. 38, No. 8, pp. 1337-1346 (2002)
2. (2) S. Soma, O. Kaneko, and T. Fujii: “A New Approach to Parameter Tuning of Controllers by Using One-Shot Experimental Data : A Proposal of Fictitious Reference Iterative Tuning”, Trans. Institute of Systems Control and Information Engineers, Vol. 17, No. 12, pp. 528-536 (2004) (in Japanese)
3. (3) O. Kaneko, S. Souma, and T. Fujii: “A fictitious reference iterative tuning (frit) in the two-degree of freedom control scheme and its application to closed loop system identification”, Proc. of 16th IFAC World congress (CD-ROM) (2005)
4. (4) M. Kano, S. Masuda, M. Ogawa, A. Takinami, S. Yoshii, and S. Ohtakara: “Deployment of E-FRIT in Chemical Process Industry”, Journal of SICE, Vol. 52, No. 10, pp. 898-903 (2013) (in Japanese)
5. (5) M. Nakamoto: “An Application of the Virtual Reference Feedback Tuning Method for Multivariable Process Control”, Trans. of SICE, Vol. 41, No. 4, pp. 330-337 (2005) (in Japanese)