• The effect of the firing temperature on the hardness of alumina porcelainŠtubna, Igor; Šin, Peter; Viljus, Mart; Trnik, AntonMaterials and technology = Materiali in tehnologije2014 / p. 331-336 : ill http://mit.imt.si/izvodi/mit143/stubna.pdf https://www.scopus.com/sourceid/5700191216 https://www.scopus.com/record/display.uri?eid=2-s2.0-84901235193&origin=inward&txGid=c11cf349791fb256ee232a8f2f8fea5e https://jcr.clarivate.com/jcr-jp/journal-profile?journal=MATER%20TEHNOL&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000336828700004