Ižvolt, Libor, et al. “TESTING THE SUITABILITY OF THE EXTRUDED POLYSTYRENE (STYRODUR) APPLICATION IN THE TRACK SUBSTRUCTURE”. Acta Polytechnica, vol. 60, no. 3, July 2020, pp. 243-51, https://doi.org/10.14311/AP.2020.60.0243.