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 Influence of oil shale ash addition on thermophysical processes in an illitic clay during heatingCsaki, Štefan; Kaljuvee, Tiit; Štubna, Igor; Dobron, Patrik; Vozar, LiborECerS 2017 : 15th Conference & Exhibition of the European Ceramic Society, July 9–13, 2017, Budapest, Hungary : book of abstracts2017 / p. 579 https://static.akcongress.com/downloads/ecers/ecers2017-abstract-book.pdf