Dima, I. C., K. Hibl, K. Idzikowska, and A. Kańska. “EFFECTIVENESS OF MULTIMODAL TRANSPORT IN POLAND”. Advanced Logistic Systems - Theory and Practice, vol. 8, no. 1, Oct. 2014, pp. 25-32, https://als.uni-miskolc.hu/index.php/als/article/view/57.