1. Babiarz, A., Czornik, A., Klamka, J., Niezabitowski, M.: The selected problems of controllability of discrete-time switched linear systems with constrained switching rule. Bull. Polish Acad. Sci. Tech. Sci. 63(3), 657–666 (2015)
2. Babiarz, A., Klamka, J.: Controllability of discrete linear time-varying fractional system with constant delay. In: 13th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM). AIP Conference Proceedings, Rhodes, Greece, 23–29 September, pp. 480058(1)–480058(4) (2015)
3. Babiarz, A., Czornik, A., Niezabitowski, M.: Output controllability of the discrete-time linear switched systems. Nonlinear Anal. Hybrid Syst. 21, 1–10 (2016)
4. Badri, V., Tavazoei, M.S.: On tuning fractional order [proportional-derivative] controllers for a class of fractional order systems. Automatica 49(7), 2297–2301 (2013)
5. Bashirov, A.E., Kerimov, K.R.: On controllability conception for stochastic systems. SIAM J. Control Optim. 35(2), 384–398 (1997)