IMA Journal of Mathematical Control and Information (IMA J. Math. Control Inform.) (20220101), 39, no.~1, 60-79. ISSN: 0265-0754 (print).eISSN: 1471-6887.
Nonlinear Dynamics and Systems Theory. An International Journal of Research and Surveys (Nonlinear Dyn. Syst. Theory) (20190101), 19, no.~2, 253-262. ISSN: 1562-8353 (print).eISSN: 1813-7385.