Götz, Marta. “Regional Aspects of Economic Growth in Germany and Poland. An Attempt of Comparison”. Regional Barometer. Analyses & Prognoses, no. 1 (23) (May 5, 2011): 7–28. Accessed December 5, 2025. https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1346.