Potužáková, Zuzana, and Jaroslav Demel. “Selected Aspects of Internationalization in the Liberec Region and the Free State of Saxony”. Journal of Reviews on Global Economics 12 (July 14, 2023): 18–27. Accessed April 7, 2025. http://lifescienceglobalca.com/index.php/jrge/article/view/9166.