Can theories of mental representation adequately explain mental imagery?Issajeva, JelenaFoundations of Science2020 / p. 341 - 355 https://doi.org/10.1007/s10699-019-09613-8 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Mental imagery as a sign systemIssajeva, JelenaBeyond words : pictures, parables, paradoxes2015 / p. 99-107 : ill

Mental imagery as a sign system?Issajeva, Jelena15th Congress of Logic, Methodology and Philosophy of Science CLMPS 2015 : University of Helsinki, 3-8 August 2015 : book of abstracts2015 / p. 484-485 http://clmps.helsinki.fi/materials/CLMPS_LC_book%20of%20abstracts%2029.7.2015.pdf

Phaneroscopy and theory of signs as theory of cognitionPietarinen, Ahti-Veikko; Issajeva, JelenaPeirce and Husserl : mutual insights on logic, mathematics and cognition2019 / p. 199-219 https://doi.org/10.1007/978-3-030-25800-9_11

Sign theory at work : the mental imagery debate revisitedIssajeva, JelenaSign systems studies = Töid märgisüsteemide alalt = Труды по знаковым системам2015 / p. 584-596 : ill http://dx.doi.org/10.12697/SSS.2015.43.4.13 http://www.ester.ee/record=b1331700*est