Determining the dependence of supplementary charges in the ZSSK CARGO tariff in the context of the customer approach, competitiveness, and globalizationAdrián Šperka, Juraj Čamaj, Ekaterina Zmeškal and Jozef MajerčákSHS Web of Conf., 92 (2021) 09015DOI: https://doi.org/10.1051/shsconf/20219209015