A note on the relationship between single- and multi-experiment observability for discrete-time nonlinear control systemsKaparin, Vadim; Kotta, Ülle; Shumsky, Alexey Ye.; Zhirabok, Alexey N.Proceedings of the Estonian Academy of Sciences2011 / 3, p. 174-178

Faulty plant reconfiguration based on disturbance decoupling methodsKaldmäe, Arvo; Kotta, Ülle; Jiang, Bin; Shumsky, Alexey Ye.; Zhirabok, Alexey N.Asian journal of control2016 / p. 858-867 : ill http://dx.doi.org/10.1002/asjc.1185

Feedback linearization and lattice theoryKotta, Ülle; Tõnso, Maris; Shumsky, Alexey Ye.; Zhirabok, Alexey N.Systems & control letters2013 / p. 248-255

Functions' algebra in nonlinear control : computational aspects and softwareBelikov, Juri; Kaldmäe, Arvo; Kaparin, Vadim; Kotta, Ülle; Shumsky, Alexey Ye.; Tõnso, Maris; Zhirabok, AlexeyProceedings of the Estonian Academy of Sciences2017 / p. 89-107 https://doi.org/10.3176/proc.2017.1.06 http://www.ester.ee/record=b2355998*est

Measurement feedback disturbance decoupling in discrete-time nonlinear systemsKaldmäe, Arvo; Kotta, Ülle; Shumsky, Alexey Ye.; Zhirabok, Alexey N.Automatica2013 / p. 2887-2891 : ill