Jan Chocholac, Jaroslava Hyrslova, Tomas Kucera, Stanislav Machalik and Roman Hruska 2019. Freight Transport Emissions Calculators as a Tool of Sustainable Logistic Planning. Communications - Scientific letters of the University of Zilina. 21, 4 (Oct. 2019), 43-50. DOI:https://doi.org/10.26552/com.C.2019.4.43-50.