1. Equipe AutomatiqueCentaleSupélec – IETR Cesson‐Sévigné France
2. Faculty of Control Systems and RoboticsITMO University Saint Petersburg Russia
3. Laboratory of Dynamics of Control SystemsV. A. Trapeznikov Institute of Control Sciences of Russian Academy of Sciences Moscow Russia
4. Laboratoire des Signaux et SystèmesCNRS‐CentraleSupélec Gif‐sur‐Yvette France
5. Department of MathematicsNorth Dakota State University Fargo North Dakota