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• Reducibility condition for nonlinear discrete-time systems : behavioral approachBartosiewicz, Zbigniew; Kotta, Ülle; Pawłuszewicz, Ewa; Tõnso, Maris; Wyrwas, MałgorzataControl and Cybernetics2013 / p. 329-346 https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=d858f3fd9c2acd98e41f35a0bed4c0cb9efab59c https://www.scopus.com/sourceid/12928 https://www.scopus.com/record/display.uri?eid=2-s2.0-84884601138&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=cl&cluster=scoprefnameauid%2C%22Bartosiewicz%2C+Z.%2317344905000%22%2Ct&s=SRCTITLE%28%22Control+and+Cybernetics%22%29&sessionSearchId=bbca0492eaf03e2d41554a3d809caf85&relpos=1