• Relaxing realizability conditions for discrete-time nonlinear systemsKotta, Ülle; Schlahter, Kurt; Tõnso, MarisAutomatica2015 / p. 67-71 https://doi.org/10.1016/j.automatica.2015.05.007 https://www.scopus.com/sourceid/24909 https://www.scopus.com/record/display.uri?eid=2-s2.0-84931368820&origin=inward&txGid=82b77ed4eb1cb7b54aec26ca4b0bf146 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=AUTOMATICA&year=2015 https://www.webofscience.com/wos/woscc/full-record/WOS:000357226400011