• Development of Young's modulus of illitic clay during heating up to 1100 °CHulan, Tomaš; Trnik, Anton; Štubna, Igor; Bačik, Peter; Kaljuvee, Tiit; Vozar, LiborMedžiagotyra = Materials science2015 / p. 429-434 : ill http://dx.doi.org/10.5755/j01.ms.21.3.7152
• Fracture toughness of ceramics fired at different temperaturesSin, Peter; Veinthal, Renno; Sergejev, Fjodor; Antonov, Maksim; Stubna, IgorMaterials science = Medžiagotyra2012 / p. 90-92 : ill https://www.researchgate.net/publication/268257498_Fracture_Toughness_of_Ceramics_Fired_at_Different_Temperatures
• Investigation of elastic and inelastic properties of Estonian clay from a locality in Kunda during thermal treatmentHulan, Tomaš; Kaljuvee, Tiit; Štubna, Igor; Trnik, AntonJournal of thermal analysis and calorimetry2016 / p. 1153-1159 : ill https://doi.org/10.1007/s10973-016-5280-6 https://www.scopus.com/sourceid/26983 https://www.scopus.com/record/display.uri?eid=2-s2.0-84957578363&origin=inward&txGid=eb58ec2c100a758d6f8c8c82b4d70009 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20THERM%20ANAL%20CALORIM&year=2016 https://www.webofscience.com/wos/woscc/full-record/WOS:000376087800002