Romanowski, Robert, and Katarzyna Walkowiak-Markiewicz. “The Significance of Business Process Service Centres for Metropolitan Development in Poland”. Studia Oeconomica Posnaniensia 3, no. 8 (August 31, 2015): s. 67–88. Accessed September 3, 2026. https://journals.ue.poznan.pl/soep/article/view/3986.