• Out-of-step protection based on discrete angle derivativesTealane, Marko; Kilter, Jako; Bagleybter, Oleg; Heimisson, Birkir; Popov, MarjanIEEE Access2022 / p. 78290-78305 https://doi.org/10.1109/ACCESS.2022.3193390 https://www.scopus.com/sourceid/21100374601 https://www.scopus.com/record/display.uri?eid=2-s2.0-85135588285&origin=inward&txGid=3df4b7cab152c8af9fff4e9297305195 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=IEEE%20ACCESS&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000832937500001