• Applying Peirce in Tallinn and HelsinkiPietarinen, Ahti-VeikkoSign systems studies = Töid märgisüsteemide alalt = Труды по знаковым системам2014 / p. 417-420 http://dx.doi.org/10.12697/SSS.2014.42.2-3.13 http://www.ester.ee/record=b1331700*est
• C.S. Peirce on the dynamic object of a sign: From ontology to semiotics and backPape, HelmutSign systems studies = Töid märgisüsteemide alalt = Труды по знаковым системам2015 / p. 419-437 ; Comment p. 433-437 https://doi.org/10.12697/SSS.2015.43.4.03 https://www.ester.ee/record=b1331700*est https://www.scopus.com/sourceid/17700155437 https://www.scopus.com/record/display.uri?eid=2-s2.0-84994093846&origin=inward&txGid=68d963ef06893350073eb6ce9039b5ee https://www.webofscience.com/wos/woscc/full-record/WOS:000369351800003
• Division of signsPeirce, Charles S.; Pietarinen, Ahti-VeikkoSign systems studies = Töid märgisüsteemide alalt = Труды по знаковым системам2015 / p. 651-662 : ill https://doi.org/10.12697/SSS.2015.43.4.16 https://www.scopus.com/sourceid/17700155437 https://www.scopus.com/record/display.uri?eid=2-s2.0-84994009787&origin=inward&txGid=9b4034f686b07f479a8b02afb119725a https://www.webofscience.com/wos/woscc/full-record/WOS:000369351800016
• Exploring Peirce's speculative grammar : the immediate object of a signBellucci, FrancescoSign systems studies = Töid märgisüsteemide alalt = Труды по знаковым системам2015 / p. 399-418 https://doi.org/10.12697/SSS.2015.43.4.02 http://www.ester.ee/record=b1331700*est https://www.scopus.com/sourceid/17700155437 https://www.scopus.com/record/display.uri?eid=2-s2.0-84994092860&origin=inward&txGid=1bae920975a53212908ac4f83cb15724 https://www.webofscience.com/wos/woscc/full-record/WOS:000369351800002
• Is Euler's circle a symbol or an icon?Moktefi, AmiroucheSign systems studies = Töid märgisüsteemide alalt = Труды по знаковым системам2015 / p. 597-615 : ill https://doi.org/10.12697/SSS.2015.43.4.14 http://www.ester.ee/record=b1331700*est https://www.scopus.com/sourceid/17700155437 https://www.scopus.com/record/display.uri?eid=2-s2.0-84993968568&origin=inward&txGid=5703524f55289842e8011f2722682703 https://www.webofscience.com/wos/woscc/full-record/WOS:000369351800014
• Recent studies on signs : commentary and perspectivesPietarinen, Ahti-VeikkoSign systems studies = Töid märgisüsteemide alalt = Труды по знаковым системам2015 / p. 616-650 https://doi.org/10.12697/SSS.2015.43.4.15 https://www.ester.ee/record=b1331700*est https://www.scopus.com/sourceid/17700155437 https://www.scopus.com/record/display.uri?eid=2-s2.0-84994049257&origin=inward&txGid=ea30d9ae55693d4cb04a7a7cc0bba9a8 https://www.webofscience.com/wos/woscc/full-record/WOS:000369351800015
• 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
• Signs systematically studied : invitation to Peirce's theoryPietarinen, Ahti-VeikkoSign systems studies = Töid märgisüsteemide alalt = Труды по знаковым системам2015 / p. 372-398 https://doi.org/10.12697/SSS.2015.43.4.01 https://www.ester.ee/record=b4554246*est https://www.scopus.com/sourceid/17700155437 https://www.scopus.com/record/display.uri?eid=2-s2.0-84993968366&origin=inward&txGid=ecdab9727702fa0e343dbd127a30748d https://www.webofscience.com/wos/woscc/full-record/WOS:000369351800001