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• Erratum : Linearization of discrete-time control system by state transformationMullari, Tanel; Kotta, ÜlleProceedings of the Estonian Academy of Sciences2021 / p. 307 https://doi.org/10.3176/proc.2021.1.09 https://kirj.ee/wp-content/plugins/kirj/pub/Erratum-proc-3-2021-307_20210822154030.pdf
• Feedback linearization of discrete-time nonlinear control systems : computational aspectsMullari, Tanel; Kotta, ÜlleProceedings of the Estonian Academy of Sciences2020 / p. 11-26 https://doi.org/10.3176/proc.2020.1.03 http://kirj.ee/32996/?tpl=1061&c_tpl=1064 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85078397740&origin=inward&txGid=2b3df047451f7039b292269950329297 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000519586800002
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• Nabla derivatives associated with nonlinear control systems on homogeneous time scalesBartosiewicz, Zbigniew; Kotta, Ülle; Mullari, Tanel; Tõnso, Maris; Pawluszewicz, Ewa; Wyrwas, MałgorzataNonlinear analysis : modelling and control2016 / p. 547-563 https://doi.org/10.15388/NA.2016.4.8 https://www.scopus.com/sourceid/17700155806 https://www.scopus.com/record/display.uri?eid=2-s2.0-84963574794&origin=inward&txGid=708713c5b2cf40f232b80b4b44249447 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=NONLINEAR%20ANAL-MODEL&year=2016 https://www.webofscience.com/wos/woscc/full-record/WOS:000375346800008
• On the properties of forward and backward shifts of vector fieldsKaldmäe, Arvo; Kaparin, Vadim; Kotta, Ülle; Mullari, Tanel; Pawluszewicz, EwaProceedings of the Estonian Academy of Sciences2022 / p. 314-325 https://doi.org/10.3176/proc.2022.4.02 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85144227254&origin=inward&txGid=0a25d396b3d8b83e0d0b9a70df64547d https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000901995900002
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