• Sign theory at work : the mental imagery debate revisitedIssajeva, JelenaSign systems studies = Töid märgisüsteemide alalt = Труды по знаковым системам2015 / p. 584-596 : ill https://doi.org/10.12697/SSS.2015.43.4.13 https://www.ester.ee/record=b1331700*est https://www.scopus.com/sourceid/17700155437 https://www.scopus.com/record/display.uri?eid=2-s2.0-84994032201&origin=inward&txGid=4cbbef905bbe4cbdb979a0412719ff25 https://www.webofscience.com/wos/woscc/full-record/WOS:000369351800013