V. Alfaro, PID controllers??? fragility, ISA Transactions, vol.46, issue.4, pp.555-559, 2007.
DOI : 10.1016/j.isatra.2007.03.006

O. David, Y. Measson, C. Bidard, C. Rotinat-libersa, and F. X. Russotto, Maestro: a hydraulic manipulator for maintenance and decomissionning, European Nuclear Conference (ENC), 2007.

F. Gosselin, C. Mgard, S. Bouchigny, F. Ferlay, F. Taha et al., A VR Training Platform for Maxillo Facial Surgery, Applied Human Factors and Ergonomics (AHFE) International Conference Advances in Cognitive Ergonomics, 2010.
DOI : 10.1201/EBK1439834916-c85

K. Gu, S. Niculescu, and J. Chen, On stability crossing curves for general systems with two delays, Journal of Mathematical Analysis and Applications, vol.311, issue.1, pp.231-253, 2005.
DOI : 10.1016/j.jmaa.2005.02.034

L. Keel and S. Bhattacharyya, Robust, fragile or optimal? In American Control Conference, Proceedings of the 1997, pp.1307-1313, 1997.

B. Liacu, C. Mendez-barrios, S. Niculescu, and S. Olaru, Some remarks on the fragility of pd controllers for siso systems with i/o delays, 4th International Conference on System Theory and Control, 2010.
URL : https://hal.archives-ouvertes.fr/hal-00528759

P. Makila, L. Keel, and S. Bhattacharyya, Comments on robust, fragile, or optimal? [and reply] . Automatic Control, IEEE Transactions on, vol.43, issue.9, pp.1265-1268, 1998.

C. Mendez-barrios, S. Niculescu, C. Morarescu, and K. Gu, On the fragility of PI controllers for time-delay SISO systems, 2008 16th Mediterranean Conference on Control and Automation, pp.529-534, 2008.
DOI : 10.1109/MED.2008.4602063

W. Michiels and S. Niculescu, On the delay sensitivity of Smith Predictors, International Journal of Systems Science, vol.53, issue.8-9, pp.543-551, 2003.
DOI : 10.1016/0005-1098(87)90040-9

C. Morarescu, Qualitative analysis of distributed delay systems: Methodology and algorithms, 2006.

C. Morarescu, S. Niculescu, and K. Gu, On the geometry of pi controllers for siso systems with input delays, Proceedings of IFAC Time Delay Systems, 2007.

C. Morarescu, S. Niculescu, and K. Gu, On the geometry of stability regions of Smith predictors subject to delay uncertainty, IMA Journal of Mathematical Control and Information, vol.24, issue.3, pp.411-423, 2007.
DOI : 10.1093/imamci/dnl032

C. Morarescu, S. Niculescu, and K. Gu, Stability Crossing Curves of Shifted Gamma-Distributed Delay Systems, SIAM Journal on Applied Dynamical Systems, vol.6, issue.2, pp.475-493, 2007.
DOI : 10.1137/060670766

S. Niculescu, Delay effects on stability. A robust control approach, 2001.

S. Niculescu, Delay effects on stability. A robust control approach, Lecture Notes in Control and Information Sciences, vol.269, 2001.

R. Sipahi, S. Niculescu, C. Abdallah, W. Michiels, and K. Gu, Stability and Stabilization of Systems with Time Delay, IEEE Control Systems, vol.31, issue.1, pp.3138-65, 2011.
DOI : 10.1109/MCS.2010.939135
URL : https://hal.archives-ouvertes.fr/hal-00664367