Brodzicki, Tomasz. “Global Knowledge-Intensive Business Services Trade Flows. The Revealed Competitive Position of Europe and Central and Eastern Europe”. Quaestiones Geographicae 43, no. 4 (December 27, 2024): 151–167. Accessed January 9, 2025. https://pressto.amu.edu.pl/index.php/qg/article/view/45636.