T. Dorożyński, A. Kuna-Marszałek, and J. Świerkocki, “Motives of Poland’s Outward Direct Investments from the Lodz Region: Results of a Direct Study”, EBER, vol. 5, no. 2, pp. 101–122, Jun. 2017, doi: 10.15678/EBER.2017.050206.