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• Integrability for nonlinear time-delay systemsKaldmäe, Arvo; Califano, Claudia; Moog, ClaudeIEEE transactions on automatic control2016 / p. 1912-1917 https://doi.org/10.1109/TAC.2015.2482003 https://www.scopus.com/sourceid/17339 https://www.scopus.com/record/display.uri?eid=2-s2.0-84977071792&origin=inward&txGid=3b4c6faf214deb9ee4842d34a0ac586f https://jcr.clarivate.com/jcr-jp/journal-profile?journal=IEEE%20T%20AUTOMAT%20CONTR&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:000380028700017
• Minimal realizations of nonlinear time-delay systemsKaldmäe, Arvo; Zbigniew, Bartosiewicz; Kotta, Ülle; Wyrwas, MalgorzataIEEE transactions on automatic control2023 / p. 6766 - 6772 https://doi.org/10.1109/TAC.2023.3240124 https://www.scopus.com/sourceid/17339 https://www.scopus.com/record/display.uri?eid=2-s2.0-85148472342&origin=inward&txGid=a091ae8a589d5c0118a19ac230b5fe8b https://jcr.clarivate.com/jcr-jp/journal-profile?journal=IEEE%20T%20AUTOMAT%20CONTR&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001129998200024
• Realization of time-delay systemsKaldmäe, Arvo; Kotta, ÜlleAutomatica2018 / p. 317-320 https://doi.org/10.1016/j.automatica.2018.01.001 https://www.scopus.com/sourceid/24909 https://www.scopus.com/record/display.uri?eid=2-s2.0-85041567109&origin=inward&txGid=d18b932d3548f4fe423cc9cd2fa18a49 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=AUTOMATICA&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000427217600036
• Realizations in feedforward forms of nonlinear input-output equations with time-delaysKaldmäe, Arvo; Kawano, Yu; Kotta, ÜlleInternational journal of robust and nonlinear control2020 / p. 7560-7573 https://doi.org/10.1002/rnc.5194 https://www.scopus.com/sourceid/17987 https://www.scopus.com/record/display.uri?eid=2-s2.0-85090317648&origin=inward&txGid=3196475c4450a213e30d0a2ec881c4b2 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=INT%20J%20ROBUST%20NONLIN&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000566556300001