Oleński, Józef. „Transborder Processes in Fragile Countries”. TRANSBORDER ECONOMICS. International Journal on Transborder Economics, Finance, Politics and Statistics. 1, no. 2 (grudzień 31, 2016): 69–92. Udostępniono luty 22, 2026. https://journals.ur.edu.pl/te/article/view/8608.