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Logistics and Transport > 2021 > Vol. 49-50, No. 1-2 > 5--16
Problemy Ekorozwoju > 2019 > Vol. 14, nr 1 > 167--173
LogForum > 2014 > Vol. 10, no. 2 > 175--183
Polish Journal of Management Studies > 2014 > Vol. 10, No. 1 > 120--127