Forms used for graphic representation of an object in engineering graphics [Online resource]Lille, Harri; Ruus, AimeScientific proceedings of the 13th International Conference on Engineering Graphics BALTGRAF-13 : June 25-26, 2015, Vilnius2015 / p. 58-61 : ill http://doi.org/10.3846/baltgraf.2015.011 http://www.ester.ee/record=b4512767*est https://digi.lib.ttu.ee/i/?3151

Misrepresentation in "misrepresentation in context" in contextPietarinen, Ahti-VeikkoFoundations of science2014 / p. 381-386

On the concepts of representation and communication in the course of engineering graphicsLille, Harri; Ruus, AimeJoint conference "Teaching mathematics : retrospective and perspectives" : 13th International Conference and 8th Nordic-Baltic Conference "Agrometrics" : 30 May - 1 June 2012 Tartu, Estonia : proceedings2012 / p. 167-176 : ill https://artiklid.elnet.ee/record=b2658863*est