Hájková, P., Jíra, A. and Řehounek, L. 2018. VERIFICATION OF BEHAVIOUR OF HUMAN ENAMEL FOR FRACTURE TOUGHNESS DETERMINATION. Acta Polytechnica. 58, 4 (Aug. 2018), 226–231. DOI:https://doi.org/10.14311/AP.2018.58.0226.