• On integrability of observable space for discrete-time analytic systemsKawano, Yu; Kotta, Ülle2015 54th IEEE Conference on Decision and Control (CDC) : date: 15-18 Dec. 20152015 / p. 7137 - 7142 https://doi.org/10.1109/CDC.2015.7403345 https://www.scopus.com/sourceid/87424 https://www.scopus.com/record/display.uri?eid=2-s2.0-84962033793&origin=inward&txGid=66b9921ad736db6a95964b5660fc4105