Domański, Bolesław, and Krzysztof Gwosdz. “Multiplier Effects in Local and Regional Development”. Quaestiones Geographicae 29, no. 2 (June 25, 2010): 27–37. Accessed May 6, 2024. https://pressto.amu.edu.pl/index.php/qg/article/view/v10117-010-0012-7.