[1] E. G. Gilbert, "Controllability and observability in multivariable control systems, " J. Soc. Ind. Appl. Math. Ser. A Control, vol. 1, no. 2, pp. 128-151, Jan. 1963. http://www.researchgate.net/publication/258243709_Controllability_and_Observability_in_Multivariable_Control_Systems
[2] D. Aeyels, "Generic observability of differentiable systems, " SIAM J. Control Optim. , vol. 19, no. 5, pp. 595-603, Sep. 1981. http://www.researchgate.net/publication/224043328_Generic_Observability_of_Differentiable_Systems
[3] A. Tornambe, "Use of asymptotic observers having-high-gains in the state and parameter estimation, " in Proc. 28th IEEE Conf. Decision and Control, Tampa, FL, USA, 1989, pp. 1791-1794. http://www.researchgate.net/publication/224272490_Use_of_asymptotic_observers_having-high-gains_in_the_state_and_parameter_estimation
[4] J. P. Gauthier and I. A. K. Kupka, "Observability and observers for nonlinear systems, " SIAM J. Control Optim. , vol. 32, no. 4, pp. 975-994, Jul. 1994. https://www.researchgate.net/publication/243093168_Observability_and_Observers_for_Nonlinear_Systems
[5] A. Isidori, Nonlinear Control Systems. 3rd ed. London, UK:Springer, 1995.
[6] L. Liu, Y. J. Liu, and C. L. P. Chen, "Adaptive neural network control for a DC motor system with dead-zone, " Nonlinear Dyn., vol. 72, no. 1-2, pp. 141-147, Apr. 2013. doi: 10.1007/s11071-012-0698-2
[7] S. B. Ding, Z. S. Wang, J. D. Wang, and H. G. Zhang, "H∞ state estimation for memristive neural networks with time-varying delays: the discrete-time case, " Neural Netw., vol. 84, pp. 47-56, Dec. 2016. http://www.ncbi.nlm.nih.gov/pubmed/27639723/
[8] S. B. Ding, Z. S. Wang, Z. J. Huang, and H. G. Zhang, "Novel switching jumps dependent exponential synchronization criteria for memristor-based neural networks, " Neural Process. Lett. , vol. 45, no. 1, pp. 15-28, Feb. 2017. doi: 10.1007%2Fs11063-016-9504-3
[9] S. B. Ding, Z. S. Wang, N. N. Rong, and H. G. Zhang, "Exponential stabilization of memristive neural networks via saturating sampled-data control, " IEEE Trans. Cybern., vol. 47, no. 10, pp. 3027-3039, Oct. 2017. http://www.ncbi.nlm.nih.gov/pubmed/28650833
[10] D. Luenberger, "Observers for multivariable systems, " IEEE Trans. Autom. Control, vol. 11, no. 2, pp. 190-197, Apr. 1966. http://www.researchgate.net/publication/3024820_Observers_for_multivariable_systems
[11] J. O'Reilly, Observers for Linear Systems. London, UK:Academic Press, 1983.
[12] A. J. Krener and W. Respondek, "Nonlinear observers with linearizable error dynamics, " SIAM J. Control Optim., vol. 23, no. 2, pp. 197-216, Apr. 1985. http://ci.nii.ac.jp/naid/80002446016
[13] P. Jouan, "Immersion of nonlinear systems into linear systems modulo output injection, " SIAM J. Control Optim. , vol. 41, no. 6, pp. 1756-1778, Jan. 2003. http://dl.acm.org/citation.cfm?id=636317.636363
[14] P. Eykhoff, System Identification. New York, USA:Wiley, 1974.
[15] J. Tsinias, "Further results on the observer design problem, " Syst. Control Lett. , vol. 14, no. 5, pp. 411-418, Jun. 1990. http://www.sciencedirect.com/science/article/pii/0167691190900929
[16] D. Karagiannis, D. Carnevale, and A. Astolfi, "Invariant manifold based reduced-order observer design for nonlinear systems, " IEEE Trans. Autom. Control, vol. 53, no. 11, pp. 2602-2614, Dec. 2008. http://www.researchgate.net/publication/224357874_Invariant_Manifold_Based_Reduced-Order_Observer_Design_for_Nonlinear_Systems
[17] M. Arcak and P. Kokotović, "Nonlinear observers: a circle criterion design and robustness analysis, " Automatica, vol. 37, no. 12, pp. 1923-1930, Dec. 2001. http://dl.acm.org/citation.cfm?id=2236728
[18] H. Khalil and A. Saberi, "Adaptive stabilization of a class of nonlinear systems using high-gain feedback, " IEEE Trans. Autom. Control, vol. 32, no. 11, pp. 1031-1035, Nov. 1987. http://www.researchgate.net/publication/3030811_Adaptive_stabilization_of_a_class_of_nonlinear_systems_using_high-gain_feedback
[19] N. A. Tornambè, "High-gain observers in the state and parameter estimation of robots having elastic joints, " Syst. Control Lett., vol. 13, no. 4, pp. 331-337, Nov. 1989. http://www.sciencedirect.com/science/article/pii/0167691189901217
[20] A. Tornambè, "High-gain observers for non-linear systems, " Int. J. Syst. Sci., vol. 23, no. 9, pp. 1475-1489, Sep. 1992. http://www.ams.org/mathscinet-getitem?mr=1181806
[21] F. Esfandiari and H. K. Khalil, "Output feedback stabilization of fully linearizable systems, " Int. J. Control, vol. 56, no. 5, pp. 1007-1037, Nov. 1992. doi: 10.1080/00207179208934355
[22] D. Astolfi, L. Marconi, and A. Teel, "Low-power peaking-free high-gain observers for nonlinear systems, " in Proc. European Control Conf., Aalborg, Denmark, 2016, pp. 1424-1429. https://www.researchgate.net/publication/312402358_Low-power_peaking-free_high-gain_observers_for_nonlinear_systems
[23] H. K. Khalil and L. Praly, "High-gain observers in nonlinear feedback control, " Int. J. Robust Nonlinear Control, vol. 24, no. 6, pp. 993-1015, Apr. 2014. http://www.springerlink.com/index/9r2rx1x753173381.pdf
[24] L. Menini, C. Possieri, and A. Tornambè, "On observer design for a class of continuous-time affine switched or switching systems, " in Proc. 53rd Annu. Conf. Decision and Control, Los Angeles, CA, USA, 2014, pp. 6234-6239. http://www.researchgate.net/publication/282269555_On_observer_design_for_a_class_of_continuous-time_affine_switched_or_switching_systems
[25] L. Menini, C. Possieri, and A. Tornambè, "Application of algebraic geometry techniques in permanent-magnet DC motor fault detection and identification, " Eur. J. Control, vol. 25, pp. 39-50, Sep. 2015. http://www.sciencedirect.com/science/article/pii/S0947358015000643
[26] L. Menini, C. Possieri, and A. Tornambè, "Sinusoidal disturbance rejection in chaotic planar oscillators, " Int. J. Adapt. Control Signal Process., vol. 29, no. 12, pp. 1578-1590, Dec. 2015. doi: 10.1002/acs.2564/pdf
[27] L. Menini, C. Possieri, and A. Tornambè, "Switching signal estimator design for a class of elementary systems, " IEEE Trans. Autom. Control, vol. 61, no. 5, pp. 1362-1367, May 2016. http://www.researchgate.net/publication/282421843_Switching_Signal_Estimator_Design_for_a_Class_of_Elementary_Systems
[28] L. Menini, C. Possieri, and A. Tornambè, "A practical observer for nonlinear systems, " in Proc. 56th IEEE Annu. Conf. Decision and Control, Melbourne, VIC, Australia, 2017, pp. 3015-3020. https://www.researchgate.net/publication/322670354_A_practical_observer_for_nonlinear_systems
[29] Y. Inouye, "On the observability of autonomous nonlinear systems, " J. Math. Anal. Appl., vol. 60, no. 1, pp. 236-247, Aug. 1977. http://www.sciencedirect.com/science/article/pii/0022247X77900622
[30] T. Kailath, Linear Systems. Englewood Cliffs, NJ, USA:Prentice-Hall, 1980.
[31] M. Vidyasagar, Nonlinear Systems Analysis. 2nd ed. Philadelphia, USA:SIAM, 2002.
[32] H. Kwakernaak and R. Sivan, Linear Optimal Control Systems. New York, USA:Wiley, 1972.
[33] B. Esposito, L. Boncagni, P. Buratti, D. Carnevale, F. Causa, M. Gospodarczyk, J. Martin-Solis, Z. Popovic, M. Agostini, G. Apruzzese, W. Bin, C. Cianfarani, R. De Angelis, G. Granucci, A. Grosso, G. Maddaluno, D. Marocco, V. Piergotti, A. Pensa, S. Podda, G. Pucella, G. Ramogida, G. Rocchi, M. Riva, A. Sibio, C. Sozzi, B. Tilia, O. Tudisco, M. Valisa, and F. T. U. Team, "Runaway electron generation and control, " Plasma Phys. Controlled Fusion, vol. 59, no. 1, pp. 014044, Jan. 2017. http://www.researchgate.net/publication/310754554_Runaway_electron_generation_and_control
[34] L. Boncagni, D. Carnevale, G. Ferró, S. Galeani, M. Gospodarczyk, and M. Sassano, "Performance-based controller switching: an application to plasma current control at FTU, " in Proc. 54th IEEE Annu. Conf. Decision and Control, Osaka, Japan, 2015, pp. 2319-2324. http://www.researchgate.net/publication/304410659_Performance-based_controller_switching_An_application_to_plasma_current_control_at_FTU
[35] L. Boncagni, D. Carnevale, C. Cianfarani, B. Esposito, G. Granucci, G. Maddaluno, D. Marocco, J. R. Martin-Solis, G. Pucella, C. Sozzi, G. Varano, V. Vitale, and L. Zaccarian, "A first approach to runaway electron control in FTU, " Fusion Eng. Des., vol. 88, no. 6-8, pp. 1109-1112, Oct. 2013. http://www.sciencedirect.com/science/article/pii/S0920379613002858